11868290 has 48 divisors (see below), whose sum is σ = 25375032. Its totient is φ = 3983616.

The previous prime is 11868287. The next prime is 11868317. The reversal of 11868290 is 9286811.

It can be written as a sum of positive squares in 4 ways, for example, as 11621281 + 247009 = 3409^2 + 497^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 11868290.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25742 + ... + 26198.

Almost surely, 2^11868290 is an apocalyptic number.

11868290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11868290 is an abundant number, since it is smaller than the sum of its proper divisors (13506742).

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

11868290 is a wasteful number, since it uses less digits than its factorization.

11868290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 11868290 is about 3445.0384613238. The cubic root of 11868290 is about 228.1021523374.

The spelling of 11868290 in words is "eleven million, eight hundred sixty-eight thousand, two hundred ninety".