12405090 has 32 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 3289664.

The previous prime is 12405089. The next prime is 12405091. The reversal of 12405090 is 9050421.

12405090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12405089) and next prime (12405091).

It is not an unprimeable number, because it can be changed into a prime (12405091) 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, 4861 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (935550).

Almost surely, 2^12405090 is an apocalyptic number.

12405090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12405090 is an abundant number, since it is smaller than the sum of its proper divisors (17532510).

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

12405090 is a wasteful number, since it uses less digits than its factorization.

12405090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 12405090 is about 3522.0860296137. The cubic root of 12405090 is about 231.4905711694.

The spelling of 12405090 in words is "twelve million, four hundred five thousand, ninety".