12078490 has 32 divisors (see below), whose sum is σ = 23091840. Its totient is φ = 4536000.

The previous prime is 12078467. The next prime is 12078491. The reversal of 12078490 is 9487021.

12078490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12078491) 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, 28480 + ... + 28900.

It is an arithmetic number, because the mean of its divisors is an integer number (721620).

Almost surely, 2^12078490 is an apocalyptic number.

12078490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12078490 is a deficient number, since it is larger than the sum of its proper divisors (11013350).

12078490 is a wasteful number, since it uses less digits than its factorization.

12078490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12078490 is about 3475.4122057678. The cubic root of 12078490 is about 229.4409231479.

The spelling of 12078490 in words is "twelve million, seventy-eight thousand, four hundred ninety".