257472448 has 28 divisors (see below), whose sum is σ = 512084320. Its totient is φ = 128443392.

The previous prime is 257472443. The next prime is 257472451. The reversal of 257472448 is 844274752.

It is a super-2 number, since 2×257472448² = 132584122958225408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257472443) 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, 25288 + ... + 33976.

Almost surely, 2^257472448 is an apocalyptic number.

It is an amenable number.

257472448 is a deficient number, since it is larger than the sum of its proper divisors (254611872).

257472448 is an equidigital number, since it uses as much as digits as its factorization.

257472448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164 (or 9154 counting only the distinct ones).

The product of its digits is 501760, while the sum is 43.

The square root of 257472448 is about 16045.9480243456. The cubic root of 257472448 is about 636.1754720660.

The spelling of 257472448 in words is "two hundred fifty-seven million, four hundred seventy-two thousand, four hundred forty-eight".