22939128 has 48 divisors (see below), whose sum is σ = 62478000. Its totient is φ = 7603200.

The previous prime is 22939117. The next prime is 22939139. The reversal of 22939128 is 82193922.

It is an interprime number because it is at equal distance from previous prime (22939117) and next prime (22939139).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22939092 and 22939101.

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 11 ways as a sum of consecutive naturals, for example, 13528 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (1301625).

Almost surely, 2^22939128 is an apocalyptic number.

It is an amenable number.

22939128 is an abundant number, since it is smaller than the sum of its proper divisors (39538872).

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

22939128 is a wasteful number, since it uses less digits than its factorization.

22939128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1805 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 22939128 is about 4789.4809739678. The cubic root of 22939128 is about 284.1355895568.

The spelling of 22939128 in words is "twenty-two million, nine hundred thirty-nine thousand, one hundred twenty-eight".