22251936 has 48 divisors (see below), whose sum is σ = 66757824. Its totient is φ = 6357504.

The previous prime is 22251923. The next prime is 22251937. The reversal of 22251936 is 63915222.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (22251937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15885 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (1390788).

Almost surely, 2^22251936 is an apocalyptic number.

It is an amenable number.

22251936 is an abundant number, since it is smaller than the sum of its proper divisors (44505888).

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

22251936 is a wasteful number, since it uses less digits than its factorization.

22251936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33133 (or 33125 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 22251936 is about 4717.1957771540. The cubic root of 22251936 is about 281.2694738121.

The spelling of 22251936 in words is "twenty-two million, two hundred fifty-one thousand, nine hundred thirty-six".