22531996 has 24 divisors (see below), whose sum is σ = 41930784. Its totient is φ = 10570560.

The previous prime is 22531991. The next prime is 22532017. The reversal of 22531996 is 69913522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 7186.

It is an arithmetic number, because the mean of its divisors is an integer number (1747116).

Almost surely, 2^22531996 is an apocalyptic number.

It is an amenable number.

22531996 is a deficient number, since it is larger than the sum of its proper divisors (19398788).

22531996 is a wasteful number, since it uses less digits than its factorization.

22531996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4699 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 22531996 is about 4746.7879666149. The cubic root of 22531996 is about 282.4445647876. Note that the first 3 decimals are identical.

The spelling of 22531996 in words is "twenty-two million, five hundred thirty-one thousand, nine hundred ninety-six".