624642630 has 32 divisors (see below), whose sum is σ = 1527431904. Its totient is φ = 163428096.

The previous prime is 624642589. The next prime is 624642647. The reversal of 624642630 is 36246426.

It is a junction number, because it is equal to n+sod(n) for n = 624642591 and 624642600.

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, 194839 + ... + 198018.

It is an arithmetic number, because the mean of its divisors is an integer number (47732247).

Almost surely, 2^624642630 is an apocalyptic number.

624642630 is an abundant number, since it is smaller than the sum of its proper divisors (902789274).

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

624642630 is a wasteful number, since it uses less digits than its factorization.

624642630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392920.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 624642630 is about 24992.8515780013. The cubic root of 624642630 is about 854.8249838413.

The spelling of 624642630 in words is "six hundred twenty-four million, six hundred forty-two thousand, six hundred thirty".