22531642 has 8 divisors (see below), whose sum is σ = 38625696. Its totient is φ = 9656412.

The previous prime is 22531633. The next prime is 22531657. The reversal of 22531642 is 24613522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804688 + ... + 804715.

It is an arithmetic number, because the mean of its divisors is an integer number (4828212).

Almost surely, 2^22531642 is an apocalyptic number.

22531642 is a deficient number, since it is larger than the sum of its proper divisors (16094054).

22531642 is a wasteful number, since it uses less digits than its factorization.

22531642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609412.

The product of its digits is 2880, while the sum is 25.

The square root of 22531642 is about 4746.7506780955. The cubic root of 22531642 is about 282.4430856185.

The spelling of 22531642 in words is "twenty-two million, five hundred thirty-one thousand, six hundred forty-two".