6400056224 has 12 divisors (see below), whose sum is σ = 12600110754. Its totient is φ = 3200028096.

The previous prime is 6400056203. The next prime is 6400056233. The reversal of 6400056224 is 4226500046.

It can be written as a sum of positive squares in only one way, i.e., 5145479824 + 1254576400 = 71732^2 + 35420^2 .

It is a super-2 number, since 2×6400056224² = 81921439340722276352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000847 + ... + 100000910.

Almost surely, 2^6400056224 is an apocalyptic number.

It is an amenable number.

6400056224 is a deficient number, since it is larger than the sum of its proper divisors (6200054530).

6400056224 is a wasteful number, since it uses less digits than its factorization.

6400056224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200001767 (or 200001759 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 6400056224 is about 80000.3513992282. The cubic root of 6400056224 is about 1856.6409702769.

The spelling of 6400056224 in words is "six billion, four hundred million, fifty-six thousand, two hundred twenty-four".