621464942 has 12 divisors (see below), whose sum is σ = 1084393080. Its totient is φ = 266342076.

The previous prime is 621464933. The next prime is 621464947. The reversal of 621464942 is 249464126.

621464942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 621464896 and 621464905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621464947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3170642 + ... + 3170837.

It is an arithmetic number, because the mean of its divisors is an integer number (90366090).

Almost surely, 2^621464942 is an apocalyptic number.

621464942 is a deficient number, since it is larger than the sum of its proper divisors (462928138).

621464942 is a wasteful number, since it uses less digits than its factorization.

621464942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341495 (or 6341488 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 621464942 is about 24929.1985831875. The cubic root of 621464942 is about 853.3729608401.

The spelling of 621464942 in words is "six hundred twenty-one million, four hundred sixty-four thousand, nine hundred forty-two".