22257075444 has 48 divisors (see below), whose sum is σ = 55042545600. Its totient is φ = 6975694336.

The previous prime is 22257075443. The next prime is 22257075509. The reversal of 22257075444 is 44457075222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22257075396 and 22257075405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22257075443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154342 + ... + 261410.

It is an arithmetic number, because the mean of its divisors is an integer number (1146719700).

Almost surely, 2^22257075444 is an apocalyptic number.

It is an amenable number.

22257075444 is an abundant number, since it is smaller than the sum of its proper divisors (32785470156).

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

22257075444 is a wasteful number, since it uses less digits than its factorization.

22257075444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108112 (or 108110 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 42.

The spelling of 22257075444 in words is "twenty-two billion, two hundred fifty-seven million, seventy-five thousand, four hundred forty-four".