22540707 has 32 divisors (see below), whose sum is σ = 40179200. Its totient is φ = 12200544.

The previous prime is 22540649. The next prime is 22540711. The reversal of 22540707 is 70704522.

It is not a de Polignac number, because 22540707 - 2⁸ = 22540451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22540717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453 + ... + 6729.

It is an arithmetic number, because the mean of its divisors is an integer number (1255600).

Almost surely, 2^22540707 is an apocalyptic number.

22540707 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22540707 is a deficient number, since it is larger than the sum of its proper divisors (17638493).

22540707 is a wasteful number, since it uses less digits than its factorization.

22540707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312 (or 6306 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22540707 is about 4747.7054457917. The cubic root of 22540707 is about 282.4809583323.

The spelling of 22540707 in words is "twenty-two million, five hundred forty thousand, seven hundred seven".