22013040402 has 24 divisors (see below), whose sum is σ = 47697698880. Its totient is φ = 7337252760.

The previous prime is 22013040337. The next prime is 22013040407. The reversal of 22013040402 is 20404031022.

22013040402 is a `hidden beast` number, since 220 + 1 + 3 + 0 + 40 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22013040407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498499 + ... + 540857.

It is an arithmetic number, because the mean of its divisors is an integer number (1987404120).

Almost surely, 2^22013040402 is an apocalyptic number.

22013040402 is an abundant number, since it is smaller than the sum of its proper divisors (25684658478).

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

22013040402 is a wasteful number, since it uses less digits than its factorization.

22013040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71238 (or 71235 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22013040402 its reverse (20404031022), we get a palindrome (42417071424).

The spelling of 22013040402 in words is "twenty-two billion, thirteen million, forty thousand, four hundred two".