624630252 has 24 divisors (see below), whose sum is σ = 1543204656. Its totient is φ = 195962368.

The previous prime is 624630241. The next prime is 624630271. The reversal of 624630252 is 252036426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530753 + ... + 1531160.

It is an arithmetic number, because the mean of its divisors is an integer number (64300194).

Almost surely, 2^624630252 is an apocalyptic number.

It is an amenable number.

624630252 is an abundant number, since it is smaller than the sum of its proper divisors (918574404).

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

624630252 is a wasteful number, since it uses less digits than its factorization.

624630252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061937 (or 3061935 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 624630252 is about 24992.6039459677. The cubic root of 624630252 is about 854.8193373628.

Adding to 624630252 its reverse (252036426), we get a palindrome (876666678).

The spelling of 624630252 in words is "six hundred twenty-four million, six hundred thirty thousand, two hundred fifty-two".