22801859 has 4 divisors (see below), whose sum is σ = 23588160. Its totient is φ = 22015560.

The previous prime is 22801853. The next prime is 22801871. The reversal of 22801859 is 95810822.

22801859 = 272² + 273² + ... + 445².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22801859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22801853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393107 + ... + 393164.

It is an arithmetic number, because the mean of its divisors is an integer number (5897040).

Almost surely, 2^22801859 is an apocalyptic number.

22801859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22801859 is a deficient number, since it is larger than the sum of its proper divisors (786301).

22801859 is an equidigital number, since it uses as much as digits as its factorization.

22801859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786300.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 22801859 is about 4775.1292129114. The cubic root of 22801859 is about 283.5676942903.

The spelling of 22801859 in words is "twenty-two million, eight hundred one thousand, eight hundred fifty-nine".