1622055172 has 12 divisors (see below), whose sum is σ = 2838902220. Its totient is φ = 810940256.

The previous prime is 1622055157. The next prime is 1622055179. The reversal of 1622055172 is 2715502261.

It can be written as a sum of positive squares in 2 ways, for example, as 614246656 + 1007808516 = 24784^2 + 31746^2 .

It is not an unprimeable number, because it can be changed into a prime (1622055179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38454 + ... + 68722.

It is an arithmetic number, because the mean of its divisors is an integer number (236575185).

Almost surely, 2^1622055172 is an apocalyptic number.

It is an amenable number.

1622055172 is a deficient number, since it is larger than the sum of its proper divisors (1216847048).

1622055172 is a wasteful number, since it uses less digits than its factorization.

1622055172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670 (or 43668 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1622055172 is about 40274.7460823777. The cubic root of 1622055172 is about 1174.9567322531.

The spelling of 1622055172 in words is "one billion, six hundred twenty-two million, fifty-five thousand, one hundred seventy-two".