439404964 has 6 divisors (see below), whose sum is σ = 768958694. Its totient is φ = 219702480.

The previous prime is 439404941. The next prime is 439404989. The reversal of 439404964 is 469404934.

It can be written as a sum of positive squares in only one way, i.e., 417875364 + 21529600 = 20442^2 + 4640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 439404964.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54925617 + ... + 54925624.

Almost surely, 2^439404964 is an apocalyptic number.

It is an amenable number.

439404964 is a deficient number, since it is larger than the sum of its proper divisors (329553730).

439404964 is a wasteful number, since it uses less digits than its factorization.

439404964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109851245 (or 109851243 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 439404964 is about 20961.9885507077. The cubic root of 439404964 is about 760.2474748090.

The spelling of 439404964 in words is "four hundred thirty-nine million, four hundred four thousand, nine hundred sixty-four".