1139790 has 16 divisors (see below), whose sum is σ = 2735568. Its totient is φ = 303936.

The previous prime is 1139779. The next prime is 1139807. The reversal of 1139790 is 979311.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 37993 = 1139790 / (1 + 1 + 3 + 9 + 7 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18967 + ... + 19026.

It is an arithmetic number, because the mean of its divisors is an integer number (170973).

2^1139790 is an apocalyptic number.

1139790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1139790 is an abundant number, since it is smaller than the sum of its proper divisors (1595778).

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

1139790 is a wasteful number, since it uses less digits than its factorization.

1139790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38003.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1139790 is about 1067.6094791636. The cubic root of 1139790 is about 104.4579778081.

The spelling of 1139790 in words is "one million, one hundred thirty-nine thousand, seven hundred ninety".