22988745 has 32 divisors (see below), whose sum is σ = 44016000. Its totient is φ = 11316672.

The previous prime is 22988717. The next prime is 22988747. The reversal of 22988745 is 54788922.

It is not a de Polignac number, because 22988745 - 2¹³ = 22980553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 22988745.

It is not an unprimeable number, because it can be changed into a prime (22988747) 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, 4795 + ... + 8304.

It is an arithmetic number, because the mean of its divisors is an integer number (1375500).

Almost surely, 2^22988745 is an apocalyptic number.

It is an amenable number.

22988745 is a deficient number, since it is larger than the sum of its proper divisors (21027255).

22988745 is a wasteful number, since it uses less digits than its factorization.

22988745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126 (or 13120 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 22988745 is about 4794.6579648605. The cubic root of 22988745 is about 284.3403024123.

The spelling of 22988745 in words is "twenty-two million, nine hundred eighty-eight thousand, seven hundred forty-five".