256373361 has 12 divisors (see below), whose sum is σ = 370456320. Its totient is φ = 170851320.

The previous prime is 256373357. The next prime is 256373363. The reversal of 256373361 is 163373652.

256373361 is a `hidden beast` number, since 2 + 563 + 7 + 33 + 61 = 666.

It is not a de Polignac number, because 256373361 - 2² = 256373357 is a prime.

It is a super-3 number, since 3×256373361³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (256373363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41376 + ... + 47166.

It is an arithmetic number, because the mean of its divisors is an integer number (30871360).

Almost surely, 2^256373361 is an apocalyptic number.

It is an amenable number.

256373361 is a deficient number, since it is larger than the sum of its proper divisors (114082959).

256373361 is a wasteful number, since it uses less digits than its factorization.

256373361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716 (or 10713 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 256373361 is about 16011.6632802467. The cubic root of 256373361 is about 635.2689550325.

The spelling of 256373361 in words is "two hundred fifty-six million, three hundred seventy-three thousand, three hundred sixty-one".