622890984 has 64 divisors (see below), whose sum is σ = 1660032000. Its totient is φ = 194201280.

The previous prime is 622890979. The next prime is 622890997. The reversal of 622890984 is 489098226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27379 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (25938000).

Almost surely, 2^622890984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622890984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830016000).

622890984 is an abundant number, since it is smaller than the sum of its proper divisors (1037141016).

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

622890984 is a wasteful number, since it uses less digits than its factorization.

622890984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17398 (or 17394 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 622890984 is about 24957.7840362481. The cubic root of 622890984 is about 854.0251918117.

The spelling of 622890984 in words is "six hundred twenty-two million, eight hundred ninety thousand, nine hundred eighty-four".