22970628 has 60 divisors (see below), whose sum is σ = 62013952. Its totient is φ = 7406640.

The previous prime is 22970627. The next prime is 22970663. The reversal of 22970628 is 82607922.

22970628 is a `hidden beast` number, since 2 + 29 + 7 + 0 + 628 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22970592 and 22970601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22970627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8901 + ... + 11187.

Almost surely, 2^22970628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22970628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31006976).

22970628 is an abundant number, since it is smaller than the sum of its proper divisors (39043324).

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

22970628 is a wasteful number, since it uses less digits than its factorization.

22970628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 22970628 is about 4792.7683023489. The cubic root of 22970628 is about 284.2655883571.

The spelling of 22970628 in words is "twenty-two million, nine hundred seventy thousand, six hundred twenty-eight".