257674230 has 128 divisors (see below), whose sum is σ = 757900800. Its totient is φ = 61776000.

The previous prime is 257674223. The next prime is 257674231. The reversal of 257674230 is 32476752.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257674231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299541 + ... + 300399.

It is an arithmetic number, because the mean of its divisors is an integer number (5921100).

Almost surely, 2^257674230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257674230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378950400).

257674230 is an abundant number, since it is smaller than the sum of its proper divisors (500226570).

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

257674230 is a wasteful number, since it uses less digits than its factorization.

257674230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 257674230 is about 16052.2344239050. The cubic root of 257674230 is about 636.3416196032.

The spelling of 257674230 in words is "two hundred fifty-seven million, six hundred seventy-four thousand, two hundred thirty".