257094630 has 72 divisors (see below), whose sum is σ = 723863088. Its totient is φ = 63281088.

The previous prime is 257094613. The next prime is 257094631. The reversal of 257094630 is 36490752.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257094631) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6759 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (10053654).

Almost surely, 2^257094630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257094630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361931544).

257094630 is an abundant number, since it is smaller than the sum of its proper divisors (466768458).

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

257094630 is a wasteful number, since it uses less digits than its factorization.

257094630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16942 (or 16926 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 257094630 is about 16034.1706988544. The cubic root of 257094630 is about 635.8641426913.

The spelling of 257094630 in words is "two hundred fifty-seven million, ninety-four thousand, six hundred thirty".