22200402 has 96 divisors (see below), whose sum is σ = 56586240. Its totient is φ = 5679360.

The previous prime is 22200397. The next prime is 22200421. The reversal of 22200402 is 20400222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376249 + ... + 376307.

It is an arithmetic number, because the mean of its divisors is an integer number (589440).

Almost surely, 2^22200402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28293120).

22200402 is an abundant number, since it is smaller than the sum of its proper divisors (34385838).

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

22200402 is a wasteful number, since it uses less digits than its factorization.

22200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 22200402 is about 4711.7302554370. The cubic root of 22200402 is about 281.0521721916.

Adding to 22200402 its reverse (20400222), we get a palindrome (42600624).

The spelling of 22200402 in words is "twenty-two million, two hundred thousand, four hundred two".