625407244 has 48 divisors (see below), whose sum is σ = 1370638080. Its totient is φ = 242573760.

The previous prime is 625407227. The next prime is 625407253. The reversal of 625407244 is 442704526.

It is a super-2 number, since 2×625407244² = 782268441695351072, which contains 22 as substring.

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, 66099 + ... + 74965.

It is an arithmetic number, because the mean of its divisors is an integer number (28554960).

Almost surely, 2^625407244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625407244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685319040).

625407244 is an abundant number, since it is smaller than the sum of its proper divisors (745230836).

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

625407244 is a wasteful number, since it uses less digits than its factorization.

625407244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 625407244 is about 25008.1435536507. The cubic root of 625407244 is about 855.1736336712.

The spelling of 625407244 in words is "six hundred twenty-five million, four hundred seven thousand, two hundred forty-four".