325666400 has 36 divisors (see below), whose sum is σ = 795035052. Its totient is φ = 130266240.

The previous prime is 325666387. The next prime is 325666409. The reversal of 325666400 is 4666523.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325666409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202742 + ... + 204341.

It is an arithmetic number, because the mean of its divisors is an integer number (22084307).

Almost surely, 2^325666400 is an apocalyptic number.

It is an amenable number.

325666400 is an abundant number, since it is smaller than the sum of its proper divisors (469368652).

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

325666400 is a wasteful number, since it uses less digits than its factorization.

325666400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407103 (or 407090 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 325666400 is about 18046.2295230887. The cubic root of 325666400 is about 688.0040336883.

The spelling of 325666400 in words is "three hundred twenty-five million, six hundred sixty-six thousand, four hundred".