11312390 has 8 divisors (see below), whose sum is σ = 20362320. Its totient is φ = 4524952.

The previous prime is 11312381. The next prime is 11312393. The reversal of 11312390 is 9321311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312393) 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 3 ways as a sum of consecutive naturals, for example, 565610 + ... + 565629.

It is an arithmetic number, because the mean of its divisors is an integer number (2545290).

Almost surely, 2^11312390 is an apocalyptic number.

11312390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312390 is a deficient number, since it is larger than the sum of its proper divisors (9049930).

11312390 is a wasteful number, since it uses less digits than its factorization.

11312390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131246.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11312390 is about 3363.3896592575. The cubic root of 11312390 is about 224.4836885453.

The spelling of 11312390 in words is "eleven million, three hundred twelve thousand, three hundred ninety".