23022281 has 8 divisors (see below), whose sum is σ = 24450720. Its totient is φ = 21615552.

The previous prime is 23022269. The next prime is 23022313. The reversal of 23022281 is 18222032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23022281 is a prime.

It is a super-2 number, since 2×23022281² = 1060050844885922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23022211) 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, 3215 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (3056340).

Almost surely, 2^23022281 is an apocalyptic number.

It is an amenable number.

23022281 is a deficient number, since it is larger than the sum of its proper divisors (1428439).

23022281 is a wasteful number, since it uses less digits than its factorization.

23022281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 23022281 is about 4798.1539158305. The cubic root of 23022281 is about 284.4785005215.

The spelling of 23022281 in words is "twenty-three million, twenty-two thousand, two hundred eighty-one".