1138884 has 12 divisors (see below), whose sum is σ = 2657424. Its totient is φ = 379624.

The previous prime is 1138883. The next prime is 1138901. The reversal of 1138884 is 4888311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1138883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47442 + ... + 47465.

It is an arithmetic number, because the mean of its divisors is an integer number (221452).

2^1138884 is an apocalyptic number.

It is an amenable number.

1138884 is an abundant number, since it is smaller than the sum of its proper divisors (1518540).

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

1138884 is a wasteful number, since it uses less digits than its factorization.

1138884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94914 (or 94912 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 1138884 is about 1067.1850823545. The cubic root of 1138884 is about 104.4302931718.

It can be divided in two parts, 11 and 38884, that multiplied together give a palindrome (427724).

The spelling of 1138884 in words is "one million, one hundred thirty-eight thousand, eight hundred eighty-four".