23198026 has 4 divisors (see below), whose sum is σ = 34797042. Its totient is φ = 11599012.

The previous prime is 23198023. The next prime is 23198029. The reversal of 23198026 is 62089132.

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

It is an interprime number because it is at equal distance from previous prime (23198023) and next prime (23198029).

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 4405801 = 4335^2 + 2099^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23198023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5799505 + ... + 5799508.

Almost surely, 2^23198026 is an apocalyptic number.

23198026 is a deficient number, since it is larger than the sum of its proper divisors (11599016).

23198026 is a wasteful number, since it uses less digits than its factorization.

23198026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11599015.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 23198026 is about 4816.4329124363. The cubic root of 23198026 is about 285.2005400922.

The spelling of 23198026 in words is "twenty-three million, one hundred ninety-eight thousand, twenty-six".