22131498 has 16 divisors (see below), whose sum is σ = 45292896. Its totient is φ = 7205520.

The previous prime is 22131493. The next prime is 22131509. The reversal of 22131498 is 89413122.

It is not an unprimeable number, because it can be changed into a prime (22131493) 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, 42633 + ... + 43148.

It is an arithmetic number, because the mean of its divisors is an integer number (2830806).

Almost surely, 2^22131498 is an apocalyptic number.

22131498 is an abundant number, since it is smaller than the sum of its proper divisors (23161398).

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

22131498 is a wasteful number, since it uses less digits than its factorization.

22131498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85829.

The product of its digits is 3456, while the sum is 30.

The square root of 22131498 is about 4704.4126094551. The cubic root of 22131498 is about 280.7611010556.

The spelling of 22131498 in words is "twenty-two million, one hundred thirty-one thousand, four hundred ninety-eight".