1183872 has 32 divisors (see below), whose sum is σ = 3145680. Its totient is φ = 394496.

The previous prime is 1183843. The next prime is 1183877. The reversal of 1183872 is 2783811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1183877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158 + ... + 1925.

2^1183872 is an apocalyptic number.

1183872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1183872 is an abundant number, since it is smaller than the sum of its proper divisors (1961808).

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

1183872 is an equidigital number, since it uses as much as digits as its factorization.

1183872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 3088 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 1183872 is about 1088.0588219393. The cubic root of 1183872 is about 105.7876370120.

The spelling of 1183872 in words is "one million, one hundred eighty-three thousand, eight hundred seventy-two".