4256138322 has 18 divisors (see below), whose sum is σ = 9222232773. Its totient is φ = 1418620512.

The previous prime is 4256138317. The next prime is 4256138347. The reversal of 4256138322 is 2238316524.

4256138322 is a `hidden beast` number, since 4 + 2 + 5 + 613 + 8 + 32 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2196703161 + 2059435161 = 46869^2 + 45381^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=46131.

It is a super-2 number, since 2×4256138322² = 36229426831993951368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 269098 + ... + 284474.

Almost surely, 2^4256138322 is an apocalyptic number.

4256138322 is an abundant number, since it is smaller than the sum of its proper divisors (4966094451).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4256138322 is an frugal number, since it uses more digits than its factorization.

4256138322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30762 (or 15382 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 4256138322 is about 65239.0858458332. The cubic root of 4256138322 is about 1620.5853600236.

The spelling of 4256138322 in words is "four billion, two hundred fifty-six million, one hundred thirty-eight thousand, three hundred twenty-two".