624320252 has 24 divisors (see below), whose sum is σ = 1108013760. Its totient is φ = 307756800.

The previous prime is 624320237. The next prime is 624320287. The reversal of 624320252 is 252023426.

It is a congruent number.

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, 345752 + ... + 347552.

It is an arithmetic number, because the mean of its divisors is an integer number (46167240).

Almost surely, 2^624320252 is an apocalyptic number.

It is an amenable number.

624320252 is a deficient number, since it is larger than the sum of its proper divisors (483693508).

624320252 is a wasteful number, since it uses less digits than its factorization.

624320252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 2979 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 624320252 is about 24986.4013415298. The cubic root of 624320252 is about 854.6779001717.

Adding to 624320252 its reverse (252023426), we get a palindrome (876343678).

The spelling of 624320252 in words is "six hundred twenty-four million, three hundred twenty thousand, two hundred fifty-two".