12056390 has 8 divisors (see below), whose sum is σ = 21701520. Its totient is φ = 4822552.

The previous prime is 12056389. The next prime is 12056399. The reversal of 12056390 is 9365021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602810 + ... + 602829.

It is an arithmetic number, because the mean of its divisors is an integer number (2712690).

Almost surely, 2^12056390 is an apocalyptic number.

12056390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12056390 is a deficient number, since it is larger than the sum of its proper divisors (9645130).

12056390 is a wasteful number, since it uses less digits than its factorization.

12056390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205646.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 12056390 is about 3472.2312710993. The cubic root of 12056390 is about 229.3009017784.

The spelling of 12056390 in words is "twelve million, fifty-six thousand, three hundred ninety".