22707945 has 80 divisors (see below), whose sum is σ = 46347840. Its totient is φ = 10544256.

The previous prime is 22707943. The next prime is 22707959. The reversal of 22707945 is 54970722.

It is not a de Polignac number, because 22707945 - 2¹ = 22707943 is a prime.

It is a super-2 number, since 2×22707945² = 1031301532246050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22707941) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 99922 + ... + 100148.

It is an arithmetic number, because the mean of its divisors is an integer number (579348).

Almost surely, 2^22707945 is an apocalyptic number.

It is an amenable number.

22707945 is an abundant number, since it is smaller than the sum of its proper divisors (23639895).

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

22707945 is a wasteful number, since it uses less digits than its factorization.

22707945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 267 counting only the distinct ones).

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

The square root of 22707945 is about 4765.2854059332. The cubic root of 22707945 is about 283.1778485619.

The spelling of 22707945 in words is "twenty-two million, seven hundred seven thousand, nine hundred forty-five".