622442144 has 12 divisors (see below), whose sum is σ = 1225433034. Its totient is φ = 311221056.

The previous prime is 622442137. The next prime is 622442159. The reversal of 622442144 is 441244226.

It can be written as a sum of positive squares in only one way, i.e., 594774544 + 27667600 = 24388^2 + 5260^2 .

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 as a sum of consecutive naturals, namely, 9725627 + ... + 9725690.

Almost surely, 2^622442144 is an apocalyptic number.

It is an amenable number.

622442144 is a deficient number, since it is larger than the sum of its proper divisors (602990890).

622442144 is a wasteful number, since it uses less digits than its factorization.

622442144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19451327 (or 19451319 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 622442144 is about 24948.7904316021. The cubic root of 622442144 is about 853.8200126368.

The spelling of 622442144 in words is "six hundred twenty-two million, four hundred forty-two thousand, one hundred forty-four".