22805401 has 4 divisors (see below), whose sum is σ = 22814992. Its totient is φ = 22795812.

The previous prime is 22805383. The next prime is 22805407. The reversal of 22805401 is 10450822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22805401 - 2⁵ = 22805369 is a prime.

It is the 4776-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22805407) by changing a digit.

It is a nontrivial repunit in base 4775.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (5703748).

Almost surely, 2^22805401 is an apocalyptic number.

It is an amenable number.

22805401 is a deficient number, since it is larger than the sum of its proper divisors (9591).

22805401 is an equidigital number, since it uses as much as digits as its factorization.

22805401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22805401 is about 4775.5000785258. The cubic root of 22805401 is about 283.5823764962.

The spelling of 22805401 in words is "twenty-two million, eight hundred five thousand, four hundred one".