22444669440 has 120 divisors (see below), whose sum is σ = 77732282628. Its totient is φ = 5985239040.

The previous prime is 22444669427. The next prime is 22444669459. The reversal of 22444669440 is 4496644422.

22444669440 is a `hidden beast` number, since 22 + 44 + 466 + 94 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22384947456 + 59721984 = 149616^2 + 7728^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464041 + ... + 510120.

Almost surely, 2^22444669440 is an apocalyptic number.

22444669440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444669440 is an abundant number, since it is smaller than the sum of its proper divisors (55287613188).

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

22444669440 is an equidigital number, since it uses as much as digits as its factorization.

22444669440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974190 (or 974171 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 22444669440 in words is "twenty-two billion, four hundred forty-four million, six hundred sixty-nine thousand, four hundred forty".