325763640 has 128 divisors (see below), whose sum is σ = 1096416000. Its totient is φ = 86027904.

The previous prime is 325763621. The next prime is 325763663. The reversal of 325763640 is 46367523.

325763640 is a `hidden beast` number, since 3 + 2 + 5 + 7 + 6 + 3 + 640 = 666.

325763640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×325763640² = 212243898292099200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 325763595 and 325763604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114151 + ... + 116969.

It is an arithmetic number, because the mean of its divisors is an integer number (8565750).

Almost surely, 2^325763640 is an apocalyptic number.

325763640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325763640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548208000).

325763640 is an abundant number, since it is smaller than the sum of its proper divisors (770652360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325763640 is a wasteful number, since it uses less digits than its factorization.

325763640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 325763640 is about 18048.9235136060. The cubic root of 325763640 is about 688.0725034011.

The spelling of 325763640 in words is "three hundred twenty-five million, seven hundred sixty-three thousand, six hundred forty".