22413540 has 48 divisors (see below), whose sum is σ = 66064320. Its totient is φ = 5662080.

The previous prime is 22413539. The next prime is 22413563. The reversal of 22413540 is 4531422.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8691 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (1376340).

Almost surely, 2^22413540 is an apocalyptic number.

22413540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22413540 is an abundant number, since it is smaller than the sum of its proper divisors (43650780).

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

22413540 is a wasteful number, since it uses less digits than its factorization.

22413540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19692 (or 19690 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22413540 is about 4734.2940339611. The cubic root of 22413540 is about 281.9487357143.

Adding to 22413540 its reverse (4531422), we get a palindrome (26944962).

The spelling of 22413540 in words is "twenty-two million, four hundred thirteen thousand, five hundred forty".