12192290 has 32 divisors (see below), whose sum is σ = 24088320. Its totient is φ = 4406400.

The previous prime is 12192287. The next prime is 12192343. The reversal of 12192290 is 9229121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29606 + ... + 30014.

It is an arithmetic number, because the mean of its divisors is an integer number (752760).

Almost surely, 2^12192290 is an apocalyptic number.

12192290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12192290 is a deficient number, since it is larger than the sum of its proper divisors (11896030).

12192290 is a wasteful number, since it uses less digits than its factorization.

12192290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12192290 is about 3491.7459815972. The cubic root of 12192290 is about 230.1592469933.

The spelling of 12192290 in words is "twelve million, one hundred ninety-two thousand, two hundred ninety".