22368072402 has 120 divisors (see below), whose sum is σ = 54451851300. Its totient is φ = 6859831680.

The previous prime is 22368072367. The next prime is 22368072421. The reversal of 22368072402 is 20427086322.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7007196681 + 15360875721 = 83709^2 + 123939^2 .

It is a super-2 number, since 2×22368072402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9553752 + ... + 9556092.

Almost surely, 2^22368072402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22368072402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27225925650).

22368072402 is an abundant number, since it is smaller than the sum of its proper divisors (32083778898).

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

22368072402 is a wasteful number, since it uses less digits than its factorization.

22368072402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 22368072402 in words is "twenty-two billion, three hundred sixty-eight million, seventy-two thousand, four hundred two".