22400001440 has 48 divisors (see below), whose sum is σ = 52929531648. Its totient is φ = 8958387456.

The previous prime is 22400001433. The next prime is 22400001497. The reversal of 22400001440 is 4410000422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313609 + ... + 1330551.

It is an arithmetic number, because the mean of its divisors is an integer number (1102698576).

Almost surely, 2^22400001440 is an apocalyptic number.

22400001440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400001440 is an abundant number, since it is smaller than the sum of its proper divisors (30529530208).

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

22400001440 is a wasteful number, since it uses less digits than its factorization.

22400001440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25221 (or 25213 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22400001440 its reverse (4410000422), we get a palindrome (26810001862).

The spelling of 22400001440 in words is "twenty-two billion, four hundred million, one thousand, four hundred forty".