624420420 has 48 divisors (see below), whose sum is σ = 1882870080. Its totient is φ = 153703296.

The previous prime is 624420413. The next prime is 624420439. The reversal of 624420420 is 24024426.

624420420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 399490 + ... + 401049.

It is an arithmetic number, because the mean of its divisors is an integer number (39226460).

Almost surely, 2^624420420 is an apocalyptic number.

624420420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

624420420 is an abundant number, since it is smaller than the sum of its proper divisors (1258449660).

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

624420420 is a wasteful number, since it uses less digits than its factorization.

624420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800564 (or 800562 counting only the distinct ones).

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

The square root of 624420420 is about 24988.4057114495. The cubic root of 624420420 is about 854.7236068409.

Adding to 624420420 its reverse (24024426), we get a palindrome (648444846).

The spelling of 624420420 in words is "six hundred twenty-four million, four hundred twenty thousand, four hundred twenty".