622155120 has 160 divisors (see below), whose sum is σ = 2108436480. Its totient is φ = 151080960.

The previous prime is 622155119. The next prime is 622155139. The reversal of 622155120 is 21551226.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 124021 + ... + 128939.

It is an arithmetic number, because the mean of its divisors is an integer number (13177728).

Almost surely, 2^622155120 is an apocalyptic number.

622155120 is a gapful number since it is divisible by the number (60) 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 622155120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054218240).

622155120 is an abundant number, since it is smaller than the sum of its proper divisors (1486281360).

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

622155120 is a wasteful number, since it uses less digits than its factorization.

622155120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4977 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 622155120 is about 24943.0375054844. The cubic root of 622155120 is about 853.6887530404.

The spelling of 622155120 in words is "six hundred twenty-two million, one hundred fifty-five thousand, one hundred twenty".