256745754 has 16 divisors (see below), whose sum is σ = 570546240. Its totient is φ = 85581900.

The previous prime is 256745719. The next prime is 256745759. The reversal of 256745754 is 457547652.

256745754 is a `hidden beast` number, since 2 + 5 + 6 + 74 + 575 + 4 = 666.

256745754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256745759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2377222 + ... + 2377329.

It is an arithmetic number, because the mean of its divisors is an integer number (35659140).

Almost surely, 2^256745754 is an apocalyptic number.

256745754 is an abundant number, since it is smaller than the sum of its proper divisors (313800486).

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

256745754 is a wasteful number, since it uses less digits than its factorization.

256745754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754562 (or 4754556 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 45.

The square root of 256745754 is about 16023.2878648547. The cubic root of 256745754 is about 635.5763911105.

The spelling of 256745754 in words is "two hundred fifty-six million, seven hundred forty-five thousand, seven hundred fifty-four".