11838312 has 40 divisors (see below), whose sum is σ = 33160050. Its totient is φ = 3945888.

The previous prime is 11838301. The next prime is 11838317. The reversal of 11838312 is 21383811.

It can be written as a sum of positive squares in only one way, i.e., 9036036 + 2802276 = 3006^2 + 1674^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11838317) 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 9 ways as a sum of consecutive naturals, for example, 8487 + ... + 9782.

Almost surely, 2^11838312 is an apocalyptic number.

11838312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11838312 is an abundant number, since it is smaller than the sum of its proper divisors (21321738).

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

11838312 is a wasteful number, since it uses less digits than its factorization.

11838312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287 (or 18274 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 11838312 is about 3440.6848155563. The cubic root of 11838312 is about 227.9099367276.

The spelling of 11838312 in words is "eleven million, eight hundred thirty-eight thousand, three hundred twelve".