1109838 has 16 divisors (see below), whose sum is σ = 2241360. Its totient is φ = 366336.

The previous prime is 1109821. The next prime is 1109839. The reversal of 1109838 is 8389011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (140085).

2^1109838 is an apocalyptic number.

1109838 is an abundant number, since it is smaller than the sum of its proper divisors (1131522).

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

1109838 is a wasteful number, since it uses less digits than its factorization.

1109838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1109838 is about 1053.4884906823. The cubic root of 1109838 is about 103.5348432245.

The spelling of 1109838 in words is "one million, one hundred nine thousand, eight hundred thirty-eight".