22745907 has 32 divisors (see below), whose sum is σ = 35904000. Its totient is φ = 14191200.

The previous prime is 22745903. The next prime is 22745927. The reversal of 22745907 is 70954722.

It is not a de Polignac number, because 22745907 - 2² = 22745903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22745903) 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 31 ways as a sum of consecutive naturals, for example, 51594 + ... + 52032.

It is an arithmetic number, because the mean of its divisors is an integer number (1122000).

Almost surely, 2^22745907 is an apocalyptic number.

22745907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22745907 is a deficient number, since it is larger than the sum of its proper divisors (13158093).

22745907 is a wasteful number, since it uses less digits than its factorization.

22745907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 22745907 is about 4769.2669248009. The cubic root of 22745907 is about 283.3355615357.

The spelling of 22745907 in words is "twenty-two million, seven hundred forty-five thousand, nine hundred seven".