422152128 has 56 divisors (see below), whose sum is σ = 1241054160. Its totient is φ = 140716800.

The previous prime is 422152123. The next prime is 422152163. The reversal of 422152128 is 821251224.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422152123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120423 + ... + 123878.

Almost surely, 2^422152128 is an apocalyptic number.

422152128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

422152128 is an abundant number, since it is smaller than the sum of its proper divisors (818902032).

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

422152128 is a wasteful number, since it uses less digits than its factorization.

422152128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244322 (or 244306 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 422152128 is about 20546.3409881176. The cubic root of 422152128 is about 750.1641880538.

The spelling of 422152128 in words is "four hundred twenty-two million, one hundred fifty-two thousand, one hundred twenty-eight".