325553940 has 144 divisors (see below), whose sum is σ = 1044965376. Its totient is φ = 81907200.

The previous prime is 325553933. The next prime is 325553941. The reversal of 325553940 is 49355523.

325553940 is a `hidden beast` number, since 32 + 55 + 539 + 40 = 666.

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 = 325553895 and 325553904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325553941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228069 + ... + 229491.

It is an arithmetic number, because the mean of its divisors is an integer number (7256704).

Almost surely, 2^325553940 is an apocalyptic number.

325553940 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 325553940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522482688).

325553940 is an abundant number, since it is smaller than the sum of its proper divisors (719411436).

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

325553940 is a wasteful number, since it uses less digits than its factorization.

325553940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 325553940 is about 18043.1133677090. The cubic root of 325553940 is about 687.9248301008.

The spelling of 325553940 in words is "three hundred twenty-five million, five hundred fifty-three thousand, nine hundred forty".