1139392 has 28 divisors (see below), whose sum is σ = 2382520. Its totient is φ = 539136.

The previous prime is 1139387. The next prime is 1139393. The reversal of 1139392 is 2939311.

It is a self number, because there is not a number n which added to its sum of digits gives 1139392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139393) 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, 748 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (85090).

2^1139392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191260).

1139392 is an abundant number, since it is smaller than the sum of its proper divisors (1243128).

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

1139392 is an equidigital number, since it uses as much as digits as its factorization.

1139392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 958 counting only the distinct ones).

The product of its digits is 1458, while the sum is 28.

The square root of 1139392 is about 1067.4230651433. The cubic root of 1139392 is about 104.4458179321.

The spelling of 1139392 in words is "one million, one hundred thirty-nine thousand, three hundred ninety-two".