22958945 has 16 divisors (see below), whose sum is σ = 28933632. Its totient is φ = 17455680.

The previous prime is 22958927. The next prime is 22958987. The reversal of 22958945 is 54985922.

It is not a de Polignac number, because 22958945 - 2¹⁸ = 22696801 is a prime.

It is a super-2 number, since 2×22958945² = 1054226311026050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22958896 and 22958905.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20264 + ... + 21366.

It is an arithmetic number, because the mean of its divisors is an integer number (1808352).

Almost surely, 2^22958945 is an apocalyptic number.

It is an amenable number.

22958945 is a deficient number, since it is larger than the sum of its proper divisors (5974687).

22958945 is a wasteful number, since it uses less digits than its factorization.

22958945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312.

The product of its digits is 259200, while the sum is 44.

The square root of 22958945 is about 4791.5493318967. The cubic root of 22958945 is about 284.2173871199.

The spelling of 22958945 in words is "twenty-two million, nine hundred fifty-eight thousand, nine hundred forty-five".