1119440 has 40 divisors (see below), whose sum is σ = 2976000. Its totient is φ = 383616.

The previous prime is 1119403. The next prime is 1119449. The reversal of 1119440 is 449111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119449) 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 7 ways as a sum of consecutive naturals, for example, 440 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (74400).

2^1119440 is an apocalyptic number.

1119440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1119440 is an abundant number, since it is smaller than the sum of its proper divisors (1856560).

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

1119440 is a wasteful number, since it uses less digits than its factorization.

1119440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1119440 is about 1058.0359162146. The cubic root of 1119440 is about 103.8325708378.

The spelling of 1119440 in words is "one million, one hundred nineteen thousand, four hundred forty".