11819290 has 24 divisors (see below), whose sum is σ = 24749172. Its totient is φ = 4052160.

The previous prime is 11819279. The next prime is 11819321. The reversal of 11819290 is 9291811.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 388129 = 3381^2 + 623^2 .

It is a super-2 number, since 2×11819290² = 279391232208200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11571 + ... + 12550.

Almost surely, 2^11819290 is an apocalyptic number.

11819290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11819290 is an abundant number, since it is smaller than the sum of its proper divisors (12929882).

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

11819290 is a wasteful number, since it uses less digits than its factorization.

11819290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24142 (or 24135 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 11819290 is about 3437.9194289570. The cubic root of 11819290 is about 227.7878014405.

The spelling of 11819290 in words is "eleven million, eight hundred nineteen thousand, two hundred ninety".