1139004 has 36 divisors (see below), whose sum is σ = 2981160. Its totient is φ = 366240.

The previous prime is 1139003. The next prime is 1139011. The reversal of 1139004 is 4009311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1139004² = 2594660224032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139003) 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, 499 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (82810).

2^1139004 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 1139004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490580).

1139004 is an abundant number, since it is smaller than the sum of its proper divisors (1842156).

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

1139004 is a wasteful number, since it uses less digits than its factorization.

1139004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1139004 is about 1067.2413035485. The cubic root of 1139004 is about 104.4339608544.

The spelling of 1139004 in words is "one million, one hundred thirty-nine thousand, four".