11798990 has 32 divisors (see below), whose sum is σ = 24615360. Its totient is φ = 3988224.

The previous prime is 11798987. The next prime is 11798999. The reversal of 11798990 is 9989711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11798999) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3956 + ... + 6264.

It is an arithmetic number, because the mean of its divisors is an integer number (769230).

Almost surely, 2^11798990 is an apocalyptic number.

11798990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11798990 is an abundant number, since it is smaller than the sum of its proper divisors (12816370).

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

11798990 is a wasteful number, since it uses less digits than its factorization.

11798990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 11798990 is about 3434.9657931339. The cubic root of 11798990 is about 227.6573158180.

The spelling of 11798990 in words is "eleven million, seven hundred ninety-eight thousand, nine hundred ninety".