325631880 has 256 divisors, whose sum is σ = 1306368000. Its totient is φ = 70481664.

The previous prime is 325631879. The next prime is 325631893. The reversal of 325631880 is 88136523.

325631880 is a `hidden beast` number, since 3 + 2 + 563 + 18 + 80 = 666.

It is a super-2 number, since 2×325631880² = 212072242544668800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142507 + ... + 144773.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 2^325631880 is an apocalyptic number.

325631880 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 325631880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653184000).

325631880 is an abundant number, since it is smaller than the sum of its proper divisors (980736120).

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

325631880 is a wasteful number, since it uses less digits than its factorization.

325631880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 325631880 is about 18045.2730652656. The cubic root of 325631880 is about 687.9797238030.

It can be divided in two parts, 32563 and 1880, that added together give a palindrome (34443).

The spelling of 325631880 in words is "three hundred twenty-five million, six hundred thirty-one thousand, eight hundred eighty".