256072474 has 8 divisors (see below), whose sum is σ = 438981408. Its totient is φ = 109745340.

The previous prime is 256072469. The next prime is 256072477. The reversal of 256072474 is 474270652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×256072474² = 131146223880961352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256072477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9145432 + ... + 9145459.

It is an arithmetic number, because the mean of its divisors is an integer number (54872676).

Almost surely, 2^256072474 is an apocalyptic number.

256072474 is a deficient number, since it is larger than the sum of its proper divisors (182908934).

256072474 is a wasteful number, since it uses less digits than its factorization.

256072474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18290900.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 256072474 is about 16002.2646522297. The cubic root of 256072474 is about 635.0203345628.

The spelling of 256072474 in words is "two hundred fifty-six million, seventy-two thousand, four hundred seventy-four".