22737328440 has 64 divisors (see below), whose sum is σ = 69798326400. Its totient is φ = 5922279552.

The previous prime is 22737328421. The next prime is 22737328447. The reversal of 22737328440 is 4482373722.

It is a super-2 number, since 2×22737328440² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22737328392 and 22737328401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22737328447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198070 + ... + 2208389.

It is an arithmetic number, because the mean of its divisors is an integer number (1090598850).

Almost surely, 2^22737328440 is an apocalyptic number.

22737328440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22737328440 is an abundant number, since it is smaller than the sum of its proper divisors (47060997960).

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

22737328440 is a wasteful number, since it uses less digits than its factorization.

22737328440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406516 (or 4406512 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 22737328440 in words is "twenty-two billion, seven hundred thirty-seven million, three hundred twenty-eight thousand, four hundred forty".