22464201540 has 96 divisors (see below), whose sum is σ = 72654309504. Its totient is φ = 5125519360.

The previous prime is 22464201533. The next prime is 22464201541. The reversal of 22464201540 is 4510246422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22464201498 and 22464201507.

It is not an unprimeable number, because it can be changed into a prime (22464201541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989859 + ... + 1012298.

It is an arithmetic number, because the mean of its divisors is an integer number (756815724).

Almost surely, 2^22464201540 is an apocalyptic number.

22464201540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22464201540 is an abundant number, since it is smaller than the sum of its proper divisors (50190107964).

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

22464201540 is a wasteful number, since it uses less digits than its factorization.

22464201540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002197 (or 2002195 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 22464201540 its reverse (4510246422), we get a palindrome (26974447962).

The spelling of 22464201540 in words is "twenty-two billion, four hundred sixty-four million, two hundred one thousand, five hundred forty".