23739198 has 32 divisors (see below), whose sum is σ = 54829824. Its totient is φ = 6711552.

The previous prime is 23739143. The next prime is 23739203. The reversal of 23739198 is 89193732.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161 + ... + 6987.

It is an arithmetic number, because the mean of its divisors is an integer number (1713432).

Almost surely, 2^23739198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23739198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27414912).

23739198 is an abundant number, since it is smaller than the sum of its proper divisors (31090626).

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

23739198 is a wasteful number, since it uses less digits than its factorization.

23739198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936.

The product of its digits is 81648, while the sum is 42.

The square root of 23739198 is about 4872.2887845447. The cubic root of 23739198 is about 287.4012686817.

The spelling of 23739198 in words is "twenty-three million, seven hundred thirty-nine thousand, one hundred ninety-eight".