22750881 has 8 divisors (see below), whose sum is σ = 30700320. Its totient is φ = 14984352.

The previous prime is 22750873. The next prime is 22750883. The reversal of 22750881 is 18805722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22750881 - 2³ = 22750873 is a prime.

It is a super-2 number, since 2×22750881² = 1035205172552322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22750883) 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, 45436 + ... + 45933.

It is an arithmetic number, because the mean of its divisors is an integer number (3837540).

Almost surely, 2^22750881 is an apocalyptic number.

It is an amenable number.

22750881 is a deficient number, since it is larger than the sum of its proper divisors (7949439).

22750881 is an equidigital number, since it uses as much as digits as its factorization.

22750881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91455.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 22750881 is about 4769.7883600848. The cubic root of 22750881 is about 283.3562129928.

The spelling of 22750881 in words is "twenty-two million, seven hundred fifty thousand, eight hundred eighty-one".