23308398 has 20 divisors (see below), whose sum is σ = 52228440. Its totient is φ = 7769412.

The previous prime is 23308391. The next prime is 23308399. The reversal of 23308398 is 89380332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23308391) 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 in 9 ways as a sum of consecutive naturals, for example, 71778 + ... + 72101.

It is an arithmetic number, because the mean of its divisors is an integer number (2611422).

Almost surely, 2^23308398 is an apocalyptic number.

23308398 is an abundant number, since it is smaller than the sum of its proper divisors (28920042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23308398 is a wasteful number, since it uses less digits than its factorization.

23308398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143893 (or 143884 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 23308398 is about 4827.8771732512. The cubic root of 23308398 is about 285.6521354579.

The spelling of 23308398 in words is "twenty-three million, three hundred eight thousand, three hundred ninety-eight".