257072448 has 56 divisors (see below), whose sum is σ = 698573152. Its totient is φ = 83372544.

The previous prime is 257072441. The next prime is 257072477. The reversal of 257072448 is 844270752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257072441) 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, 10990 + ... + 25197.

Almost surely, 2^257072448 is an apocalyptic number.

It is an amenable number.

257072448 is an abundant number, since it is smaller than the sum of its proper divisors (441500704).

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

257072448 is a wasteful number, since it uses less digits than its factorization.

257072448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36239 (or 36229 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 257072448 is about 16033.4789736975. The cubic root of 257072448 is about 635.8458548154.

The spelling of 257072448 in words is "two hundred fifty-seven million, seventy-two thousand, four hundred forty-eight".