22429858 has 16 divisors (see below), whose sum is σ = 37253664. Its totient is φ = 10042560.

The previous prime is 22429831. The next prime is 22429859. The reversal of 22429858 is 85892422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22429858.

It is not an unprimeable number, because it can be changed into a prime (22429859) 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, 6135 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (2328354).

Almost surely, 2^22429858 is an apocalyptic number.

22429858 is a deficient number, since it is larger than the sum of its proper divisors (14823806).

22429858 is a wasteful number, since it uses less digits than its factorization.

22429858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15297.

The product of its digits is 92160, while the sum is 40.

The square root of 22429858 is about 4736.0171030097. The cubic root of 22429858 is about 282.0171426294.

It can be divided in two parts, 2242 and 9858, that added together give a square (12100 = 110²).

The spelling of 22429858 in words is "twenty-two million, four hundred twenty-nine thousand, eight hundred fifty-eight".