1119990 has 32 divisors (see below), whose sum is σ = 2763360. Its totient is φ = 290304.

The previous prime is 1119959. The next prime is 1120001. The reversal of 1119990 is 999111.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606 + ... + 1614.

It is an arithmetic number, because the mean of its divisors is an integer number (86355).

2^1119990 is an apocalyptic number.

1119990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1119990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381680).

1119990 is an abundant number, since it is smaller than the sum of its proper divisors (1643370).

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

1119990 is a wasteful number, since it uses less digits than its factorization.

1119990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 729, while the sum is 30.

The square root of 1119990 is about 1058.2957998594. The cubic root of 1119990 is about 103.8495729591.

It can be divided in two parts, 111 and 9990, that added together give a palindrome (10101).

The spelling of 1119990 in words is "one million, one hundred nineteen thousand, nine hundred ninety".