22540370 has 32 divisors (see below), whose sum is σ = 41990400. Its totient is φ = 8706880.

The previous prime is 22540369. The next prime is 22540373. The reversal of 22540370 is 7304522.

It is not an unprimeable number, because it can be changed into a prime (22540373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37331 + ... + 37929.

It is an arithmetic number, because the mean of its divisors is an integer number (1312200).

Almost surely, 2^22540370 is an apocalyptic number.

22540370 is a deficient number, since it is larger than the sum of its proper divisors (19450030).

22540370 is a wasteful number, since it uses less digits than its factorization.

22540370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 22540370 is about 4747.6699548305. The cubic root of 22540370 is about 282.4795505599.

Adding to 22540370 its reverse (7304522), we get a palindrome (29844892).

The spelling of 22540370 in words is "twenty-two million, five hundred forty thousand, three hundred seventy".