22140496 has 20 divisors (see below), whose sum is σ = 49025632. Its totient is φ = 9488736.

The previous prime is 22140493. The next prime is 22140509. The reversal of 22140496 is 69404122.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22140493) 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 3 ways as a sum of consecutive naturals, for example, 98730 + ... + 98953.

Almost surely, 2^22140496 is an apocalyptic number.

It is an amenable number.

22140496 is an abundant number, since it is smaller than the sum of its proper divisors (26885136).

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

22140496 is a wasteful number, since it uses less digits than its factorization.

22140496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197698 (or 197692 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22140496 is about 4705.3688484539. The cubic root of 22140496 is about 280.7991455671.

The spelling of 22140496 in words is "twenty-two million, one hundred forty thousand, four hundred ninety-six".