22398995 has 4 divisors (see below), whose sum is σ = 26878800. Its totient is φ = 17919192.

The previous prime is 22398983. The next prime is 22399057. The reversal of 22398995 is 59989322.

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

It is a cyclic number.

It is not a de Polignac number, because 22398995 - 2¹⁰ = 22397971 is a prime.

It is an unprimeable number.

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, 2239895 + ... + 2239904.

It is an arithmetic number, because the mean of its divisors is an integer number (6719700).

Almost surely, 2^22398995 is an apocalyptic number.

22398995 is a deficient number, since it is larger than the sum of its proper divisors (4479805).

22398995 is an equidigital number, since it uses as much as digits as its factorization.

22398995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479804.

The product of its digits is 349920, while the sum is 47.

The square root of 22398995 is about 4732.7576527855. The cubic root of 22398995 is about 281.8877334248.

The spelling of 22398995 in words is "twenty-two million, three hundred ninety-eight thousand, nine hundred ninety-five".