22244529520 has 40 divisors (see below), whose sum is σ = 52921295856. Its totient is φ = 8690884608.

The previous prime is 22244529487. The next prime is 22244529521. The reversal of 22244529520 is 2592544222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22244529520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244529521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3229777 + ... + 3236656.

Almost surely, 2^22244529520 is an apocalyptic number.

22244529520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244529520 is an abundant number, since it is smaller than the sum of its proper divisors (30676766336).

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

22244529520 is a wasteful number, since it uses less digits than its factorization.

22244529520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466489 (or 6466483 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 22244529520 in words is "twenty-two billion, two hundred forty-four million, five hundred twenty-nine thousand, five hundred twenty".