12305898 has 32 divisors (see below), whose sum is σ = 29833920. Its totient is φ = 3728880.

The previous prime is 12305893. The next prime is 12305899. The reversal of 12305898 is 89850321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12305893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9765 + ... + 10952.

It is an arithmetic number, because the mean of its divisors is an integer number (932310).

Almost surely, 2^12305898 is an apocalyptic number.

12305898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12305898 is an abundant number, since it is smaller than the sum of its proper divisors (17528022).

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

12305898 is a wasteful number, since it uses less digits than its factorization.

12305898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20739 (or 20733 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 12305898 is about 3507.9763397150. The cubic root of 12305898 is about 230.8719141492.

It can be divided in two parts, 12305 and 898, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12305898 in words is "twelve million, three hundred five thousand, eight hundred ninety-eight".