624244020 has 48 divisors (see below), whose sum is σ = 1795129728. Its totient is φ = 161965440.

The previous prime is 624244001. The next prime is 624244039. The reversal of 624244020 is 20442426.

It is an interprime number because it is at equal distance from previous prime (624244001) and next prime (624244039).

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, 138376 + ... + 142815.

It is an arithmetic number, because the mean of its divisors is an integer number (37398536).

Almost surely, 2^624244020 is an apocalyptic number.

624244020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

624244020 is an abundant number, since it is smaller than the sum of its proper divisors (1170885708).

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

624244020 is a wasteful number, since it uses less digits than its factorization.

624244020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281240 (or 281238 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 624244020 is about 24984.8758251867. The cubic root of 624244020 is about 854.6431122257.

Adding to 624244020 its reverse (20442426), we get a palindrome (644686446).

The spelling of 624244020 in words is "six hundred twenty-four million, two hundred forty-four thousand, twenty".