22925420 has 24 divisors (see below), whose sum is σ = 55021344. Its totient is φ = 7860096.

The previous prime is 22925417. The next prime is 22925429. The reversal of 22925420 is 2452922.

It is a self number, because there is not a number n which added to its sum of digits gives 22925420.

It is not an unprimeable number, because it can be changed into a prime (22925429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81737 + ... + 82016.

It is an arithmetic number, because the mean of its divisors is an integer number (2292556).

Almost surely, 2^22925420 is an apocalyptic number.

22925420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22925420 is an abundant number, since it is smaller than the sum of its proper divisors (32095924).

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

22925420 is a wasteful number, since it uses less digits than its factorization.

22925420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163769 (or 163767 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22925420 is about 4788.0497073443. The cubic root of 22925420 is about 284.0789802157.

The spelling of 22925420 in words is "twenty-two million, nine hundred twenty-five thousand, four hundred twenty".