22082540 has 24 divisors (see below), whose sum is σ = 47870592. Its totient is φ = 8547840.

The previous prime is 22082519. The next prime is 22082551. The reversal of 22082540 is 4528022.

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, 17189 + ... + 18428.

It is an arithmetic number, because the mean of its divisors is an integer number (1994608).

Almost surely, 2^22082540 is an apocalyptic number.

22082540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22082540 is an abundant number, since it is smaller than the sum of its proper divisors (25788052).

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

22082540 is a wasteful number, since it uses less digits than its factorization.

22082540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35657 (or 35655 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22082540 is about 4699.2063159644. The cubic root of 22082540 is about 280.5539204703.

It can be divided in two parts, 22082 and 540, that added together give a palindrome (22622).

The spelling of 22082540 in words is "twenty-two million, eighty-two thousand, five hundred forty".