622774988 has 24 divisors (see below), whose sum is σ = 1199850960. Its totient is φ = 280480320.

The previous prime is 622774987. The next prime is 622775039. The reversal of 622774988 is 889477226.

It is a happy number.

622774988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (622774987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60131 + ... + 69722.

It is an arithmetic number, because the mean of its divisors is an integer number (49993790).

Almost surely, 2^622774988 is an apocalyptic number.

It is an amenable number.

622774988 is a deficient number, since it is larger than the sum of its proper divisors (577075972).

622774988 is a wasteful number, since it uses less digits than its factorization.

622774988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129977 (or 129975 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 622774988 is about 24955.4600839175. The cubic root of 622774988 is about 853.9721757631.

The spelling of 622774988 in words is "six hundred twenty-two million, seven hundred seventy-four thousand, nine hundred eighty-eight".