22771494 has 12 divisors (see below), whose sum is σ = 49338276. Its totient is φ = 7590492.

The previous prime is 22771493. The next prime is 22771499. The reversal of 22771494 is 49417722.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22771493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632524 + ... + 632559.

It is an arithmetic number, because the mean of its divisors is an integer number (4111523).

Almost surely, 2^22771494 is an apocalyptic number.

22771494 is an abundant number, since it is smaller than the sum of its proper divisors (26566782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22771494 is a wasteful number, since it uses less digits than its factorization.

22771494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265091 (or 1265088 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 22771494 is about 4771.9486585671. The cubic root of 22771494 is about 283.4417636508.

The spelling of 22771494 in words is "twenty-two million, seven hundred seventy-one thousand, four hundred ninety-four".