22051968 has 32 divisors (see below), whose sum is σ = 58576560. Its totient is φ = 7350528.

The previous prime is 22051957. The next prime is 22051979. The reversal of 22051968 is 86915022.

It is an interprime number because it is at equal distance from previous prime (22051957) and next prime (22051979).

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28330 + ... + 29097.

Almost surely, 2^22051968 is an apocalyptic number.

It is an amenable number.

22051968 is an abundant number, since it is smaller than the sum of its proper divisors (36524592).

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

22051968 is an equidigital number, since it uses as much as digits as its factorization.

22051968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57444 (or 57432 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 22051968 is about 4695.9522995874. The cubic root of 22051968 is about 280.4243904484.

The spelling of 22051968 in words is "twenty-two million, fifty-one thousand, nine hundred sixty-eight".