325729864 has 16 divisors (see below), whose sum is σ = 637297920. Its totient is φ = 155783760.

The previous prime is 325729853. The next prime is 325729867. The reversal of 325729864 is 468927523.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (325729867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884952 + ... + 885319.

It is an arithmetic number, because the mean of its divisors is an integer number (39831120).

Almost surely, 2^325729864 is an apocalyptic number.

It is an amenable number.

325729864 is a deficient number, since it is larger than the sum of its proper divisors (311568056).

325729864 is a wasteful number, since it uses less digits than its factorization.

325729864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770300 (or 1770296 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 325729864 is about 18047.9878102796. The cubic root of 325729864 is about 688.0487222121.

It can be divided in two parts, 32572 and 9864, that added together give a square (42436 = 206²).

The spelling of 325729864 in words is "three hundred twenty-five million, seven hundred twenty-nine thousand, eight hundred sixty-four".