22492642 has 4 divisors (see below), whose sum is σ = 33738966. Its totient is φ = 11246320.

The previous prime is 22492621. The next prime is 22492663. The reversal of 22492642 is 24629422.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22492621) and next prime (22492663).

It can be written as a sum of positive squares in only one way, i.e., 18326961 + 4165681 = 4281^2 + 2041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5623159 + ... + 5623162.

Almost surely, 2^22492642 is an apocalyptic number.

22492642 is a deficient number, since it is larger than the sum of its proper divisors (11246324).

22492642 is a wasteful number, since it uses less digits than its factorization.

22492642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246323.

The product of its digits is 13824, while the sum is 31.

The square root of 22492642 is about 4742.6408255317. The cubic root of 22492642 is about 282.2800313398.

The spelling of 22492642 in words is "twenty-two million, four hundred ninety-two thousand, six hundred forty-two".