12766290 has 32 divisors (see below), whose sum is σ = 32253120. Its totient is φ = 3225024.

The previous prime is 12766289. The next prime is 12766291. The reversal of 12766290 is 9266721.

It is an interprime number because it is at equal distance from previous prime (12766289) and next prime (12766291).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12766291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10629 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (1007910).

Almost surely, 2^12766290 is an apocalyptic number.

12766290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12766290 is an abundant number, since it is smaller than the sum of its proper divisors (19486830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12766290 is a wasteful number, since it uses less digits than its factorization.

12766290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22426.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12766290 is about 3572.9945423972. The cubic root of 12766290 is about 233.7158871931.

The spelling of 12766290 in words is "twelve million, seven hundred sixty-six thousand, two hundred ninety".