12390730 has 16 divisors (see below), whose sum is σ = 24331104. Its totient is φ = 4505680.

The previous prime is 12390727. The next prime is 12390737. The reversal of 12390730 is 3709321.

It is a junction number, because it is equal to n+sod(n) for n = 12390695 and 12390704.

It is not an unprimeable number, because it can be changed into a prime (12390737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56212 + ... + 56431.

It is an arithmetic number, because the mean of its divisors is an integer number (1520694).

Almost surely, 2^12390730 is an apocalyptic number.

12390730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12390730 is a deficient number, since it is larger than the sum of its proper divisors (11940374).

12390730 is a wasteful number, since it uses less digits than its factorization.

12390730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112661.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 12390730 is about 3520.0468746879. The cubic root of 12390730 is about 231.4012130077.

The spelling of 12390730 in words is "twelve million, three hundred ninety thousand, seven hundred thirty".