22542370 has 16 divisors (see below), whose sum is σ = 40937400. Its totient is φ = 8936704.

The previous prime is 22542353. The next prime is 22542371. The reversal of 22542370 is 7324522.

It can be written as a sum of positive squares in 4 ways, for example, as 6245001 + 16297369 = 2499^2 + 4037^2 .

It is not an unprimeable number, because it can be changed into a prime (22542371) 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 7 ways as a sum of consecutive naturals, for example, 8845 + ... + 11104.

Almost surely, 2^22542370 is an apocalyptic number.

22542370 is a deficient number, since it is larger than the sum of its proper divisors (18395030).

22542370 is a wasteful number, since it uses less digits than its factorization.

22542370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20069.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22542370 is about 4747.8805797956. The cubic root of 22542370 is about 282.4879050869.

Adding to 22542370 its reverse (7324522), we get a palindrome (29866892).

It can be divided in two parts, 2254 and 2370, that added together give a square (4624 = 68²).

The spelling of 22542370 in words is "twenty-two million, five hundred forty-two thousand, three hundred seventy".