22730402 has 16 divisors (see below), whose sum is σ = 35212320. Its totient is φ = 10997952.

The previous prime is 22730387. The next prime is 22730423. The reversal of 22730402 is 20403722.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8549 + ... + 10887.

It is an arithmetic number, because the mean of its divisors is an integer number (2200770).

Almost surely, 2^22730402 is an apocalyptic number.

22730402 is a deficient number, since it is larger than the sum of its proper divisors (12481918).

22730402 is a wasteful number, since it uses less digits than its factorization.

22730402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22730402 is about 4767.6411358239. The cubic root of 22730402 is about 283.2711672916.

It can be divided in two parts, 22730 and 402, that added together give a palindrome (23132).

The spelling of 22730402 in words is "twenty-two million, seven hundred thirty thousand, four hundred two".