1139328 has 96 divisors (see below), whose sum is σ = 3500640. Its totient is φ = 354816.

The previous prime is 1139321. The next prime is 1139329. The reversal of 1139328 is 8239311.

It is a tau number, because it is divible by the number of its divisors (96).

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 (1139321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26475 + ... + 26517.

It is an arithmetic number, because the mean of its divisors is an integer number (36465).

2^1139328 is an apocalyptic number.

1139328 is a gapful number since it is divisible by the number (18) 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 1139328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750320).

1139328 is an abundant number, since it is smaller than the sum of its proper divisors (2361312).

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

1139328 is a wasteful number, since it uses less digits than its factorization.

1139328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 71 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1139328 is about 1067.3930859810. The cubic root of 1139328 is about 104.4438623109.

Adding to 1139328 its product of digits (1296), we get a square (1140624 = 1068²).

The spelling of 1139328 in words is "one million, one hundred thirty-nine thousand, three hundred twenty-eight".