325538638 has 24 divisors (see below), whose sum is σ = 510837408. Its totient is φ = 155518272.

The previous prime is 325538599. The next prime is 325538641. The reversal of 325538638 is 836835523.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 325538594 and 325538603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172870 + ... + 174742.

It is an arithmetic number, because the mean of its divisors is an integer number (21284892).

Almost surely, 2^325538638 is an apocalyptic number.

325538638 is a deficient number, since it is larger than the sum of its proper divisors (185298770).

325538638 is a wasteful number, since it uses less digits than its factorization.

325538638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1965 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 325538638 is about 18042.6893228255. The cubic root of 325538638 is about 687.9140517634.

The spelling of 325538638 in words is "three hundred twenty-five million, five hundred thirty-eight thousand, six hundred thirty-eight".