22540152 has 32 divisors (see below), whose sum is σ = 56580480. Its totient is φ = 7482720.

The previous prime is 22540121. The next prime is 22540153. The reversal of 22540152 is 25104522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4527 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (1768140).

Almost surely, 2^22540152 is an apocalyptic number.

It is an amenable number.

22540152 is an abundant number, since it is smaller than the sum of its proper divisors (34040328).

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

22540152 is a wasteful number, since it uses less digits than its factorization.

22540152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843 (or 3839 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22540152 is about 4747.6469961445. The cubic root of 22540152 is about 282.4786398865.

Adding to 22540152 its reverse (25104522), we get a palindrome (47644674).

The spelling of 22540152 in words is "twenty-two million, five hundred forty thousand, one hundred fifty-two".