1109040 has 40 divisors (see below), whose sum is σ = 3438768. Its totient is φ = 295680.

The previous prime is 1109033. The next prime is 1109057. The reversal of 1109040 is 409011.

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 (15).

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, 2071 + ... + 2550.

2^1109040 is an apocalyptic number.

1109040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109040 is an abundant number, since it is smaller than the sum of its proper divisors (2329728).

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

1109040 is a wasteful number, since it uses less digits than its factorization.

1109040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637 (or 4631 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1109040 is about 1053.1096808975. The cubic root of 1109040 is about 103.5100226006.

The spelling of 1109040 in words is "one million, one hundred nine thousand, forty".