256574748 has 24 divisors (see below), whose sum is σ = 600193552. Its totient is φ = 85307904.

The previous prime is 256574741. The next prime is 256574753. The reversal of 256574748 is 847475652.

It is a super-2 number, since 2×256574748² = 131661202622527008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256574697 and 256574706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256574741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22165 + ... + 31692.

Almost surely, 2^256574748 is an apocalyptic number.

It is an amenable number.

256574748 is an abundant number, since it is smaller than the sum of its proper divisors (343618804).

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

256574748 is a wasteful number, since it uses less digits than its factorization.

256574748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54261 (or 54259 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 48.

The square root of 256574748 is about 16017.9508052684. The cubic root of 256574748 is about 635.4352508137.

The spelling of 256574748 in words is "two hundred fifty-six million, five hundred seventy-four thousand, seven hundred forty-eight".