22626993 has 8 divisors (see below), whose sum is σ = 31142656. Its totient is φ = 14598000.

The previous prime is 22626973. The next prime is 22627021. The reversal of 22626993 is 39962622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22626993 - 2⁹ = 22626481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22626953) 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 7 ways as a sum of consecutive naturals, for example, 121558 + ... + 121743.

It is an arithmetic number, because the mean of its divisors is an integer number (3892832).

Almost surely, 2^22626993 is an apocalyptic number.

It is an amenable number.

22626993 is a deficient number, since it is larger than the sum of its proper divisors (8515663).

22626993 is a wasteful number, since it uses less digits than its factorization.

22626993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243335.

The product of its digits is 69984, while the sum is 39.

The square root of 22626993 is about 4756.7838925055. The cubic root of 22626993 is about 282.8409458054.

The spelling of 22626993 in words is "twenty-two million, six hundred twenty-six thousand, nine hundred ninety-three".