22501460440 has 32 divisors (see below), whose sum is σ = 53606422080. Its totient is φ = 8471137792.

The previous prime is 22501460417. The next prime is 22501460447. The reversal of 22501460440 is 4406410522.

It is a junction number, because it is equal to n+sod(n) for n = 22501460399 and 22501460408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501460447) 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, 16544512 + ... + 16545871.

It is an arithmetic number, because the mean of its divisors is an integer number (1675200690).

Almost surely, 2^22501460440 is an apocalyptic number.

22501460440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22501460440 is an abundant number, since it is smaller than the sum of its proper divisors (31104961640).

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

22501460440 is a wasteful number, since it uses less digits than its factorization.

22501460440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33090411 (or 33090407 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 22501460440 its reverse (4406410522), we get a palindrome (26907870962).

The spelling of 22501460440 in words is "twenty-two billion, five hundred one million, four hundred sixty thousand, four hundred forty".