622694916 has 72 divisors (see below), whose sum is σ = 1677521664. Its totient is φ = 194304000.

The previous prime is 622694899. The next prime is 622694951. The reversal of 622694916 is 619496226.

622694916 is a `hidden beast` number, since 622 + 6 + 9 + 4 + 9 + 16 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30916 + ... + 46916.

It is an arithmetic number, because the mean of its divisors is an integer number (23298912).

Almost surely, 2^622694916 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 622694916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838760832).

622694916 is an abundant number, since it is smaller than the sum of its proper divisors (1054826748).

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

622694916 is a wasteful number, since it uses less digits than its factorization.

622694916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16081 (or 16076 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 622694916 is about 24953.8557341346. The cubic root of 622694916 is about 853.9355749618.

The spelling of 622694916 in words is "six hundred twenty-two million, six hundred ninety-four thousand, nine hundred sixteen".