625229240 has 32 divisors (see below), whose sum is σ = 1467931680. Its totient is φ = 239217792.

The previous prime is 625229221. The next prime is 625229243. The reversal of 625229240 is 42922526.

It is a junction number, because it is equal to n+sod(n) for n = 625229197 and 625229206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625229243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338879 + ... + 340718.

It is an arithmetic number, because the mean of its divisors is an integer number (45872865).

Almost surely, 2^625229240 is an apocalyptic number.

It is an amenable number.

625229240 is an abundant number, since it is smaller than the sum of its proper divisors (842702440).

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

625229240 is a wasteful number, since it uses less digits than its factorization.

625229240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679631 (or 679627 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 625229240 is about 25004.5843796693. The cubic root of 625229240 is about 855.0924925303.

The spelling of 625229240 in words is "six hundred twenty-five million, two hundred twenty-nine thousand, two hundred forty".