22245656 has 32 divisors (see below), whose sum is σ = 46494000. Its totient is φ = 9916416.

The previous prime is 22245611. The next prime is 22245659. The reversal of 22245656 is 65654222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245659) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1721 + ... + 6888.

Almost surely, 2^22245656 is an apocalyptic number.

It is an amenable number.

22245656 is an abundant number, since it is smaller than the sum of its proper divisors (24248344).

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

22245656 is a wasteful number, since it uses less digits than its factorization.

22245656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651 (or 8647 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 22245656 is about 4716.5300804723. The cubic root of 22245656 is about 281.2430111185.

Adding to 22245656 its reverse (65654222), we get a palindrome (87899878).

It can be divided in two parts, 222456 and 56, that multiplied together give a triangular number (12457536 = T₄₉₉₁).

The spelling of 22245656 in words is "twenty-two million, two hundred forty-five thousand, six hundred fifty-six".