622652636 has 12 divisors (see below), whose sum is σ = 1092784728. Its totient is φ = 310428432.

The previous prime is 622652627. The next prime is 622652647. The reversal of 622652636 is 636256226.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 622652636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222911 + ... + 225686.

It is an arithmetic number, because the mean of its divisors is an integer number (91065394).

Almost surely, 2^622652636 is an apocalyptic number.

It is an amenable number.

622652636 is a deficient number, since it is larger than the sum of its proper divisors (470132092).

622652636 is a wasteful number, since it uses less digits than its factorization.

622652636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448948 (or 448946 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 622652636 is about 24953.0085560840. The cubic root of 622652636 is about 853.9162475660.

The spelling of 622652636 in words is "six hundred twenty-two million, six hundred fifty-two thousand, six hundred thirty-six".