329423428 has 6 divisors (see below), whose sum is σ = 576491006. Its totient is φ = 164711712.

The previous prime is 329423417. The next prime is 329423477. The reversal of 329423428 is 824324923.

It can be written as a sum of positive squares in only one way, i.e., 291453184 + 37970244 = 17072^2 + 6162^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41177925 + ... + 41177932.

Almost surely, 2^329423428 is an apocalyptic number.

It is an amenable number.

329423428 is a deficient number, since it is larger than the sum of its proper divisors (247067578).

329423428 is a wasteful number, since it uses less digits than its factorization.

329423428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82355861 (or 82355859 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 329423428 is about 18150.0255647203. The cubic root of 329423428 is about 690.6396281253.

The spelling of 329423428 in words is "three hundred twenty-nine million, four hundred twenty-three thousand, four hundred twenty-eight".