257472270 has 240 divisors, whose sum is σ = 792548064. Its totient is φ = 59875200.

The previous prime is 257472269. The next prime is 257472301. The reversal of 257472270 is 72274752.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3626335 + ... + 3626405.

Almost surely, 2^257472270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257472270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396274032).

257472270 is an abundant number, since it is smaller than the sum of its proper divisors (535075794).

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

257472270 is a wasteful number, since it uses less digits than its factorization.

257472270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 257472270 is about 16045.9424777730. The cubic root of 257472270 is about 636.1753254623.

The spelling of 257472270 in words is "two hundred fifty-seven million, four hundred seventy-two thousand, two hundred seventy".