625988238 has 32 divisors (see below), whose sum is σ = 1284218496. Its totient is φ = 203312928.

The previous prime is 625988219. The next prime is 625988243. The reversal of 625988238 is 832889526.

It is a super-2 number, since 2×625988238² = 783722548228689288, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 111556 + ... + 117032.

It is an arithmetic number, because the mean of its divisors is an integer number (40131828).

Almost surely, 2^625988238 is an apocalyptic number.

625988238 is an abundant number, since it is smaller than the sum of its proper divisors (658230258).

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

625988238 is a wasteful number, since it uses less digits than its factorization.

625988238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5968.

The product of its digits is 1658880, while the sum is 51.

The square root of 625988238 is about 25019.7569532560. The cubic root of 625988238 is about 855.4383662267.

The spelling of 625988238 in words is "six hundred twenty-five million, nine hundred eighty-eight thousand, two hundred thirty-eight".