22002402 has 16 divisors (see below), whose sum is σ = 44500320. Its totient is φ = 7251552.

The previous prime is 22002391. The next prime is 22002433. The reversal of 22002402 is 20420022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20068 + ... + 21135.

It is an arithmetic number, because the mean of its divisors is an integer number (2781270).

Almost surely, 2^22002402 is an apocalyptic number.

22002402 is an abundant number, since it is smaller than the sum of its proper divisors (22497918).

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

22002402 is a wasteful number, since it uses less digits than its factorization.

22002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41297.

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

The square root of 22002402 is about 4690.6718068950. The cubic root of 22002402 is about 280.2141304194.

Adding to 22002402 its reverse (20420022), we get a palindrome (42422424).

The spelling of 22002402 in words is "twenty-two million, two thousand, four hundred two".