11312800 has 72 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 4442880.

The previous prime is 11312731. The next prime is 11312801. The reversal of 11312800 is 821311.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312801) 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 11 ways as a sum of consecutive naturals, for example, 63111 + ... + 63289.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 2^11312800 is an apocalyptic number.

11312800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14061600).

11312800 is an abundant number, since it is smaller than the sum of its proper divisors (16810400).

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

11312800 is a wasteful number, since it uses less digits than its factorization.

11312800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11312800 is about 3363.4506091215. The cubic root of 11312800 is about 224.4864005333.

The spelling of 11312800 in words is "eleven million, three hundred twelve thousand, eight hundred".