22040240404 has 96 divisors (see below), whose sum is σ = 48455703296. Its totient is φ = 8539914240.

The previous prime is 22040240377. The next prime is 22040240449. The reversal of 22040240404 is 40404204022.

It is a super-2 number, since 2×22040240404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4411732 + ... + 4416724.

Almost surely, 2^22040240404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22040240404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24227851648).

22040240404 is an abundant number, since it is smaller than the sum of its proper divisors (26415462892).

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

22040240404 is a wasteful number, since it uses less digits than its factorization.

22040240404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265 (or 5263 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22040240404 its reverse (40404204022), we get a palindrome (62444444426).

The spelling of 22040240404 in words is "twenty-two billion, forty million, two hundred forty thousand, four hundred four".