12279290 has 8 divisors (see below), whose sum is σ = 22102740. Its totient is φ = 4911712.

The previous prime is 12279283. The next prime is 12279299. The reversal of 12279290 is 9297221.

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 8281 = 3503^2 + 91^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12279299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613955 + ... + 613974.

Almost surely, 2^12279290 is an apocalyptic number.

12279290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12279290 is a deficient number, since it is larger than the sum of its proper divisors (9823450).

12279290 is a wasteful number, since it uses less digits than its factorization.

12279290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227936.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12279290 is about 3504.1817875219. The cubic root of 12279290 is about 230.7053958195.

The spelling of 12279290 in words is "twelve million, two hundred seventy-nine thousand, two hundred ninety".