22006024440 has 64 divisors (see below), whose sum is σ = 66034634400. Its totient is φ = 5866801152.

The previous prime is 22006024421. The next prime is 22006024451. The reversal of 22006024440 is 4442060022.

It is a super-2 number, since 2×22006024440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22006024440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508284 + ... + 549876.

Almost surely, 2^22006024440 is an apocalyptic number.

22006024440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22006024440 is an abundant number, since it is smaller than the sum of its proper divisors (44028609960).

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

22006024440 is a wasteful number, since it uses less digits than its factorization.

22006024440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46016 (or 46012 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22006024440 its reverse (4442060022), we get a palindrome (26448084462).

The spelling of 22006024440 in words is "twenty-two billion, six million, twenty-four thousand, four hundred forty".