12301890 has 16 divisors (see below), whose sum is σ = 29524608. Its totient is φ = 3280496.

The previous prime is 12301889. The next prime is 12301903. The reversal of 12301890 is 9810321.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Curzon number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12301890.

It is an unprimeable number.

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, 205002 + ... + 205061.

It is an arithmetic number, because the mean of its divisors is an integer number (1845288).

Almost surely, 2^12301890 is an apocalyptic number.

12301890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12301890 is an abundant number, since it is smaller than the sum of its proper divisors (17222718).

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

12301890 is a wasteful number, since it uses less digits than its factorization.

12301890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410073.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12301890 is about 3507.4050236607. The cubic root of 12301890 is about 230.8468466272.

The spelling of 12301890 in words is "twelve million, three hundred one thousand, eight hundred ninety".