22552340 has 12 divisors (see below), whose sum is σ = 47359956. Its totient is φ = 9020928.

The previous prime is 22552307. The next prime is 22552381. The reversal of 22552340 is 4325522.

It can be written as a sum of positive squares in 2 ways, for example, as 8549776 + 14002564 = 2924^2 + 3742^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563789 + ... + 563828.

It is an arithmetic number, because the mean of its divisors is an integer number (3946663).

Almost surely, 2^22552340 is an apocalyptic number.

22552340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22552340 is an abundant number, since it is smaller than the sum of its proper divisors (24807616).

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

22552340 is a wasteful number, since it uses less digits than its factorization.

22552340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127626 (or 1127624 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22552340 is about 4748.9304058914. The cubic root of 22552340 is about 282.5295450343.

Adding to 22552340 its reverse (4325522), we get a palindrome (26877862).

The spelling of 22552340 in words is "twenty-two million, five hundred fifty-two thousand, three hundred forty".