12290990 has 16 divisors (see below), whose sum is σ = 22340448. Its totient is φ = 4868256.

The previous prime is 12290987. The next prime is 12291001. The reversal of 12290990 is 9909221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4937 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (1396278).

Almost surely, 2^12290990 is an apocalyptic number.

12290990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12290990 is a deficient number, since it is larger than the sum of its proper divisors (10049458).

12290990 is a wasteful number, since it uses less digits than its factorization.

12290990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12043.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 12290990 is about 3505.8508239798. The cubic root of 12290990 is about 230.7786464249.

The spelling of 12290990 in words is "twelve million, two hundred ninety thousand, nine hundred ninety".