622243144 has 32 divisors (see below), whose sum is σ = 1185408000. Its totient is φ = 306168192.

The previous prime is 622243121. The next prime is 622243157. The reversal of 622243144 is 441342226.

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 7 ways as a sum of consecutive naturals, for example, 156817 + ... + 160735.

It is an arithmetic number, because the mean of its divisors is an integer number (37044000).

Almost surely, 2^622243144 is an apocalyptic number.

It is an amenable number.

622243144 is a deficient number, since it is larger than the sum of its proper divisors (563164856).

622243144 is a wasteful number, since it uses less digits than its factorization.

622243144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237 (or 4233 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 622243144 is about 24944.8019434912. The cubic root of 622243144 is about 853.7290117866.

The spelling of 622243144 in words is "six hundred twenty-two million, two hundred forty-three thousand, one hundred forty-four".