624006990 has 96 divisors (see below), whose sum is σ = 1689158016. Its totient is φ = 165745440.

The previous prime is 624006973. The next prime is 624007037. The reversal of 624006990 is 99600426.

624006990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1192869 + ... + 1193391.

It is an arithmetic number, because the mean of its divisors is an integer number (17595396).

Almost surely, 2^624006990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 624006990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844579008).

624006990 is an abundant number, since it is smaller than the sum of its proper divisors (1065151026).

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

624006990 is a wasteful number, since it uses less digits than its factorization.

624006990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 624006990 is about 24980.1319051762. The cubic root of 624006990 is about 854.5349271273.

The spelling of 624006990 in words is "six hundred twenty-four million, six thousand, nine hundred ninety".