13812290 has 8 divisors (see below), whose sum is σ = 24862140. Its totient is φ = 5524912.

The previous prime is 13812289. The next prime is 13812301. The reversal of 13812290 is 9221831.

It can be written as a sum of positive squares in 2 ways, for example, as 13786369 + 25921 = 3713^2 + 161^2 .

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

It is a super-3 number, since 3×13812290³ (a number of 22 digits) contains 333 as substring.

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, 690605 + ... + 690624.

Almost surely, 2^13812290 is an apocalyptic number.

13812290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13812290 is a deficient number, since it is larger than the sum of its proper divisors (11049850).

13812290 is a wasteful number, since it uses less digits than its factorization.

13812290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381236.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13812290 is about 3716.4889344649. The cubic root of 13812290 is about 239.9322146529.

The spelling of 13812290 in words is "thirteen million, eight hundred twelve thousand, two hundred ninety".