22068401 has 4 divisors (see below), whose sum is σ = 22080000. Its totient is φ = 22056804.

The previous prime is 22068379. The next prime is 22068451. The reversal of 22068401 is 10486022.

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 22068401 - 2⁶ = 22068337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22068451) 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, 2201 + ... + 6998.

It is an arithmetic number, because the mean of its divisors is an integer number (5520000).

Almost surely, 2^22068401 is an apocalyptic number.

It is an amenable number.

22068401 is a deficient number, since it is larger than the sum of its proper divisors (11599).

22068401 is an equidigital number, since it uses as much as digits as its factorization.

22068401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11598.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 22068401 is about 4697.7016720946. The cubic root of 22068401 is about 280.4940300351.

The spelling of 22068401 in words is "twenty-two million, sixty-eight thousand, four hundred one".