22925840 has 40 divisors (see below), whose sum is σ = 60918720. Its totient is φ = 7860096.

The previous prime is 22925827. The next prime is 22925849. The reversal of 22925840 is 4852922.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22925797 and 22925806.

It is not an unprimeable number, because it can be changed into a prime (22925849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19910 + ... + 21029.

It is an arithmetic number, because the mean of its divisors is an integer number (1522968).

Almost surely, 2^22925840 is an apocalyptic number.

22925840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22925840 is an abundant number, since it is smaller than the sum of its proper divisors (37992880).

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

22925840 is a wasteful number, since it uses less digits than its factorization.

22925840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40959 (or 40953 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 22925840 is about 4788.0935663372. The cubic root of 22925840 is about 284.0807150068.

The spelling of 22925840 in words is "twenty-two million, nine hundred twenty-five thousand, eight hundred forty".