624446064420 has 96 divisors (see below), whose sum is σ = 1802332310016. Its totient is φ = 161420428800.

The previous prime is 624446064391. The next prime is 624446064427. The reversal of 624446064420 is 24460644426.

It is not an unprimeable number, because it can be changed into a prime (624446064427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82650 + ... + 1120590.

It is an arithmetic number, because the mean of its divisors is an integer number (18774294896).

Almost surely, 2^624446064420 is an apocalyptic number.

624446064420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 624446064420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901166155008).

624446064420 is an abundant number, since it is smaller than the sum of its proper divisors (1177886245596).

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

624446064420 is a wasteful number, since it uses less digits than its factorization.

624446064420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038261 (or 1038259 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 624446064420 in words is "six hundred twenty-four billion, four hundred forty-six million, sixty-four thousand, four hundred twenty".