11311790 has 32 divisors (see below), whose sum is σ = 23716800. Its totient is φ = 3803904.

The previous prime is 11311789. The next prime is 11311799. The reversal of 11311790 is 9711311.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311799) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2186 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (741150).

Almost surely, 2^11311790 is an apocalyptic number.

11311790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311790 is an abundant number, since it is smaller than the sum of its proper divisors (12405010).

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

11311790 is a wasteful number, since it uses less digits than its factorization.

11311790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 11311790 is about 3363.3004623435. The cubic root of 11311790 is about 224.4797196641.

The spelling of 11311790 in words is "eleven million, three hundred eleven thousand, seven hundred ninety".