22698642 has 16 divisors (see below), whose sum is σ = 45444672. Its totient is φ = 7558320.

The previous prime is 22698623. The next prime is 22698647. The reversal of 22698642 is 24689622.

It is a self number, because there is not a number n which added to its sum of digits gives 22698642.

It is not an unprimeable number, because it can be changed into a prime (22698647) 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, 8667 + ... + 10977.

It is an arithmetic number, because the mean of its divisors is an integer number (2840292).

Almost surely, 2^22698642 is an apocalyptic number.

22698642 is an abundant number, since it is smaller than the sum of its proper divisors (22746030).

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

22698642 is a wasteful number, since it uses less digits than its factorization.

22698642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953.

The product of its digits is 82944, while the sum is 39.

The square root of 22698642 is about 4764.3091839216. The cubic root of 22698642 is about 283.1391724750.

The spelling of 22698642 in words is "twenty-two million, six hundred ninety-eight thousand, six hundred forty-two".