12023898 has 16 divisors (see below), whose sum is σ = 24502176. Its totient is φ = 3932240.

The previous prime is 12023881. The next prime is 12023909. The reversal of 12023898 is 89832021.

It is a super-2 number, since 2×12023898² = 289148246228808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18588 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (1531386).

Almost surely, 2^12023898 is an apocalyptic number.

12023898 is an abundant number, since it is smaller than the sum of its proper divisors (12478278).

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

12023898 is a wasteful number, since it uses less digits than its factorization.

12023898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37869.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 12023898 is about 3467.5492786693. The cubic root of 12023898 is about 229.0947276271.

It can be divided in two parts, 12023 and 898, that added together give a palindrome (12921).

The spelling of 12023898 in words is "twelve million, twenty-three thousand, eight hundred ninety-eight".