22422730 has 16 divisors (see below), whose sum is σ = 44030304. Its totient is φ = 8153680.

The previous prime is 22422727. The next prime is 22422731. The reversal of 22422730 is 3722422.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22422731) 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 7 ways as a sum of consecutive naturals, for example, 101812 + ... + 102031.

It is an arithmetic number, because the mean of its divisors is an integer number (2751894).

Almost surely, 2^22422730 is an apocalyptic number.

22422730 is a deficient number, since it is larger than the sum of its proper divisors (21607574).

22422730 is a wasteful number, since it uses less digits than its factorization.

22422730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203861.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22422730 is about 4735.2645121471. The cubic root of 22422730 is about 281.9872653237.

The spelling of 22422730 in words is "twenty-two million, four hundred twenty-two thousand, seven hundred thirty".