11321790 has 16 divisors (see below), whose sum is σ = 27172368. Its totient is φ = 3019136.

The previous prime is 11321759. The next prime is 11321801. The reversal of 11321790 is 9712311.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11321790.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188667 + ... + 188726.

It is an arithmetic number, because the mean of its divisors is an integer number (1698273).

Almost surely, 2^11321790 is an apocalyptic number.

11321790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11321790 is an abundant number, since it is smaller than the sum of its proper divisors (15850578).

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

11321790 is a wasteful number, since it uses less digits than its factorization.

11321790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377403.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11321790 is about 3364.7867688756. The cubic root of 11321790 is about 224.5458493698.

The spelling of 11321790 in words is "eleven million, three hundred twenty-one thousand, seven hundred ninety".