12305190 has 16 divisors (see below), whose sum is σ = 29532528. Its totient is φ = 3281376.

The previous prime is 12305177. The next prime is 12305191. The reversal of 12305190 is 9150321.

It is a super-2 number, since 2×12305190² = 302835401872200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305191) 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 7 ways as a sum of consecutive naturals, for example, 205057 + ... + 205116.

It is an arithmetic number, because the mean of its divisors is an integer number (1845783).

Almost surely, 2^12305190 is an apocalyptic number.

12305190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12305190 is an abundant number, since it is smaller than the sum of its proper divisors (17227338).

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

12305190 is a wasteful number, since it uses less digits than its factorization.

12305190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410183.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 12305190 is about 3507.8754253822. The cubic root of 12305190 is about 230.8674864499.

The spelling of 12305190 in words is "twelve million, three hundred five thousand, one hundred ninety".