324638402 has 12 divisors (see below), whose sum is σ = 535251318. Its totient is φ = 147562800.

The previous prime is 324638393. The next prime is 324638429. The reversal of 324638402 is 204836423.

It can be written as a sum of positive squares in only one way, i.e., 321879481 + 2758921 = 17941^2 + 1661^2 .

It is a super-2 number, since 2×324638402² = 210780184106227208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 670499 + ... + 670982.

Almost surely, 2^324638402 is an apocalyptic number.

324638402 is a deficient number, since it is larger than the sum of its proper divisors (210612916).

324638402 is a wasteful number, since it uses less digits than its factorization.

324638402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341505 (or 1341494 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 324638402 is about 18017.7246621209. The cubic root of 324638402 is about 687.2793531930.

The spelling of 324638402 in words is "three hundred twenty-four million, six hundred thirty-eight thousand, four hundred two".