22629894 has 32 divisors (see below), whose sum is σ = 51943680. Its totient is φ = 6438432.

The previous prime is 22629881. The next prime is 22629899. The reversal of 22629894 is 49892622.

It is a super-2 number, since 2×22629894² = 1024224204902472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22629899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10297 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (1623240).

Almost surely, 2^22629894 is an apocalyptic number.

22629894 is an abundant number, since it is smaller than the sum of its proper divisors (29313786).

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

22629894 is a wasteful number, since it uses less digits than its factorization.

22629894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284.

The product of its digits is 124416, while the sum is 42.

The square root of 22629894 is about 4757.0888156519. The cubic root of 22629894 is about 282.8530329398.

The spelling of 22629894 in words is "twenty-two million, six hundred twenty-nine thousand, eight hundred ninety-four".