22940997 has 16 divisors (see below), whose sum is σ = 31397760. Its totient is φ = 14893632.

The previous prime is 22940989. The next prime is 22941013. The reversal of 22940997 is 79904922.

It is not a de Polignac number, because 22940997 - 2³ = 22940989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24504 + ... + 25422.

It is an arithmetic number, because the mean of its divisors is an integer number (1962360).

Almost surely, 2^22940997 is an apocalyptic number.

It is an amenable number.

22940997 is a deficient number, since it is larger than the sum of its proper divisors (8456763).

22940997 is a wasteful number, since it uses less digits than its factorization.

22940997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 22940997 is about 4789.6760850813. The cubic root of 22940997 is about 284.1433061390.

The spelling of 22940997 in words is "twenty-two million, nine hundred forty thousand, nine hundred ninety-seven".