4000264138 has 24 divisors (see below), whose sum is σ = 6655968396. Its totient is φ = 1801238400.

The previous prime is 4000264117. The next prime is 4000264171. The reversal of 4000264138 is 8314620004.

It can be written as a sum of positive squares in 6 ways, for example, as 136025569 + 3864238569 = 11663^2 + 62163^2 .

It is a super-2 number, since 2×4000264138² = 32004226347537766088, which contains 22 as substring.

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, 130473 + ... + 158188.

Almost surely, 2^4000264138 is an apocalyptic number.

4000264138 is a deficient number, since it is larger than the sum of its proper divisors (2655704258).

4000264138 is a wasteful number, since it uses less digits than its factorization.

4000264138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288730 (or 288717 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 4000264138 is about 63247.6413631370. The cubic root of 4000264138 is about 1587.4359922774.

The spelling of 4000264138 in words is "four billion, two hundred sixty-four thousand, one hundred thirty-eight".