22789020 has 24 divisors (see below), whose sum is σ = 63809424. Its totient is φ = 6077056.

The previous prime is 22789009. The next prime is 22789033. The reversal of 22789020 is 2098722.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189849 + ... + 189968.

It is an arithmetic number, because the mean of its divisors is an integer number (2658726).

Almost surely, 2^22789020 is an apocalyptic number.

22789020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22789020 is an abundant number, since it is smaller than the sum of its proper divisors (41020404).

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

22789020 is a wasteful number, since it uses less digits than its factorization.

22789020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379829 (or 379827 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 22789020 is about 4773.7846620894. The cubic root of 22789020 is about 283.5144616545.

The spelling of 22789020 in words is "twenty-two million, seven hundred eighty-nine thousand, twenty".