1622257372 has 12 divisors (see below), whose sum is σ = 2855951280. Its totient is φ = 806271296.

The previous prime is 1622257369. The next prime is 1622257381. The reversal of 1622257372 is 2737522261.

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, 1213597 + ... + 1214932.

It is an arithmetic number, because the mean of its divisors is an integer number (237995940).

Almost surely, 2^1622257372 is an apocalyptic number.

It is an amenable number.

1622257372 is a deficient number, since it is larger than the sum of its proper divisors (1233693908).

1622257372 is a wasteful number, since it uses less digits than its factorization.

1622257372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428700 (or 2428698 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 1622257372 is about 40277.2562620643. The cubic root of 1622257372 is about 1175.0055522900.

The spelling of 1622257372 in words is "one billion, six hundred twenty-two million, two hundred fifty-seven thousand, three hundred seventy-two".