22398001 has 4 divisors (see below), whose sum is σ = 22681600. Its totient is φ = 22114404.

The previous prime is 22397983. The next prime is 22398011. The reversal of 22398001 is 10089322.

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.

It is a cyclic number.

It is not a de Polignac number, because 22398001 - 2¹⁷ = 22266929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22398011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141681 + ... + 141838.

It is an arithmetic number, because the mean of its divisors is an integer number (5670400).

Almost surely, 2^22398001 is an apocalyptic number.

It is an amenable number.

22398001 is a deficient number, since it is larger than the sum of its proper divisors (283599).

22398001 is an equidigital number, since it uses as much as digits as its factorization.

22398001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283598.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 22398001 is about 4732.6526388485. The cubic root of 22398001 is about 281.8835635866.

The spelling of 22398001 in words is "twenty-two million, three hundred ninety-eight thousand, one".