22492492 has 12 divisors (see below), whose sum is σ = 42940296. Its totient is φ = 10223840.

The previous prime is 22492489. The next prime is 22492499. The reversal of 22492492 is 29429422.

It is not an unprimeable number, because it can be changed into a prime (22492499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255553 + ... + 255640.

It is an arithmetic number, because the mean of its divisors is an integer number (3578358).

Almost surely, 2^22492492 is an apocalyptic number.

22492492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22492492 is a deficient number, since it is larger than the sum of its proper divisors (20447804).

22492492 is a wasteful number, since it uses less digits than its factorization.

22492492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511208 (or 511206 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 22492492 is about 4742.6250115311. The cubic root of 22492492 is about 282.2794038442.

The spelling of 22492492 in words is "twenty-two million, four hundred ninety-two thousand, four hundred ninety-two".