12013398 has 24 divisors (see below), whose sum is σ = 26325000. Its totient is φ = 3958944.

The previous prime is 12013381. The next prime is 12013411. The reversal of 12013398 is 89331021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2148 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (1096875).

Almost surely, 2^12013398 is an apocalyptic number.

12013398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12013398 is an abundant number, since it is smaller than the sum of its proper divisors (14311602).

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

12013398 is a wasteful number, since it uses less digits than its factorization.

12013398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596 (or 7593 counting only the distinct ones).

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

The square root of 12013398 is about 3466.0349103839. The cubic root of 12013398 is about 229.0280217167.

The spelling of 12013398 in words is "twelve million, thirteen thousand, three hundred ninety-eight".