620400624384 has 36 divisors (see below), whose sum is σ = 1651170413816. Its totient is φ = 206800207872.

The previous prime is 620400624383. The next prime is 620400624397. The reversal of 620400624384 is 483426004026.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (620400624383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403905889 + ... + 403907424.

Almost surely, 2^620400624384 is an apocalyptic number.

620400624384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

620400624384 is an abundant number, since it is smaller than the sum of its proper divisors (1030769789432).

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

620400624384 is an equidigital number, since it uses as much as digits as its factorization.

620400624384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807813332 (or 807813318 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 620400624384 in words is "six hundred twenty billion, four hundred million, six hundred twenty-four thousand, three hundred eighty-four".