1622972624 has 160 divisors (see below), whose sum is σ = 3989078016. Its totient is φ = 622702080.

The previous prime is 1622972597. The next prime is 1622972641. The reversal of 1622972624 is 4262792261.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 12389039 + ... + 12389169.

Almost surely, 2^1622972624 is an apocalyptic number.

1622972624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622972624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1994539008).

1622972624 is an abundant number, since it is smaller than the sum of its proper divisors (2366105392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622972624 is a wasteful number, since it uses less digits than its factorization.

1622972624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 347 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 1622972624 is about 40286.1343888937. The cubic root of 1622972624 is about 1175.1782132586.

The spelling of 1622972624 in words is "one billion, six hundred twenty-two million, nine hundred seventy-two thousand, six hundred twenty-four".