12039290 has 8 divisors (see below), whose sum is σ = 21670740. Its totient is φ = 4815712.

The previous prime is 12039289. The next prime is 12039311. The reversal of 12039290 is 9293021.

It can be written as a sum of positive squares in 2 ways, for example, as 12033961 + 5329 = 3469^2 + 73^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601955 + ... + 601974.

Almost surely, 2^12039290 is an apocalyptic number.

12039290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12039290 is a deficient number, since it is larger than the sum of its proper divisors (9631450).

12039290 is a wasteful number, since it uses less digits than its factorization.

12039290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203936.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 12039290 is about 3469.7680037720. The cubic root of 12039290 is about 229.1924419861.

The spelling of 12039290 in words is "twelve million, thirty-nine thousand, two hundred ninety".