22945993 has 16 divisors (see below), whose sum is σ = 26866944. Its totient is φ = 19192320.

The previous prime is 22945991. The next prime is 22945997. The reversal of 22945993 is 39954922.

It is a happy number.

It is not a de Polignac number, because 22945993 - 2¹ = 22945991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22945991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67921 + ... + 68257.

It is an arithmetic number, because the mean of its divisors is an integer number (1679184).

Almost surely, 2^22945993 is an apocalyptic number.

It is an amenable number.

22945993 is a deficient number, since it is larger than the sum of its proper divisors (3920951).

22945993 is a wasteful number, since it uses less digits than its factorization.

22945993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 174960, while the sum is 43.

The square root of 22945993 is about 4790.1975950894. The cubic root of 22945993 is about 284.1639311786.

The spelling of 22945993 in words is "twenty-two million, nine hundred forty-five thousand, nine hundred ninety-three".