23198013 has 48 divisors (see below), whose sum is σ = 37679616. Its totient is φ = 13685760.

The previous prime is 23198009. The next prime is 23198023. The reversal of 23198013 is 31089132.

It is not a de Polignac number, because 23198013 - 2² = 23198009 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317745 + ... + 317817.

It is an arithmetic number, because the mean of its divisors is an integer number (784992).

Almost surely, 2^23198013 is an apocalyptic number.

It is an amenable number.

23198013 is a deficient number, since it is larger than the sum of its proper divisors (14481603).

23198013 is a wasteful number, since it uses less digits than its factorization.

23198013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 23198013 is about 4816.4315628897. The cubic root of 23198013 is about 285.2004868175.

The spelling of 23198013 in words is "twenty-three million, one hundred ninety-eight thousand, thirteen".