22540441 has 48 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 15876000.

The previous prime is 22540421. The next prime is 22540451. The reversal of 22540441 is 14404522.

It is a happy number.

It is not a de Polignac number, because 22540441 - 2⁵ = 22540409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22540411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317436 + ... + 317506.

It is an arithmetic number, because the mean of its divisors is an integer number (656640).

Almost surely, 2^22540441 is an apocalyptic number.

It is an amenable number.

22540441 is a deficient number, since it is larger than the sum of its proper divisors (8978279).

22540441 is a wasteful number, since it uses less digits than its factorization.

22540441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 22540441 is about 4747.6774321767. The cubic root of 22540441 is about 282.4798471540.

Adding to 22540441 its reverse (14404522), we get a palindrome (36944963).

The spelling of 22540441 in words is "twenty-two million, five hundred forty thousand, four hundred forty-one".