22010320440 has 96 divisors (see below), whose sum is σ = 72271115280. Its totient is φ = 5808900096.

The previous prime is 22010320439. The next prime is 22010320487. The reversal of 22010320440 is 4402301022.

22010320440 is a `hidden beast` number, since 2 + 201 + 0 + 3 + 20 + 440 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280234 + ... + 350073.

Almost surely, 2^22010320440 is an apocalyptic number.

22010320440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010320440 is an abundant number, since it is smaller than the sum of its proper divisors (50260794840).

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

22010320440 is a wasteful number, since it uses less digits than its factorization.

22010320440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630421 (or 630414 counting only the distinct ones).

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

Adding to 22010320440 its reverse (4402301022), we get a palindrome (26412621462).

The spelling of 22010320440 in words is "twenty-two billion, ten million, three hundred twenty thousand, four hundred forty".