12386390 has 16 divisors (see below), whose sum is σ = 22432032. Its totient is φ = 4924224.

The previous prime is 12386389. The next prime is 12386399. The reversal of 12386390 is 9368321.

It is a super-3 number, since 3×12386390³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12386399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (1402002).

Almost surely, 2^12386390 is an apocalyptic number.

12386390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12386390 is a deficient number, since it is larger than the sum of its proper divisors (10045642).

12386390 is a wasteful number, since it uses less digits than its factorization.

12386390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12386390 is about 3519.4303516336. The cubic root of 12386390 is about 231.3741928471.

The spelling of 12386390 in words is "twelve million, three hundred eighty-six thousand, three hundred ninety".