1115870 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 362016.

The previous prime is 1115857. The next prime is 1115879. The reversal of 1115870 is 785111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1115870 is an apocalyptic number.

1115870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115870 is an abundant number, since it is smaller than the sum of its proper divisors (1303330).

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

1115870 is a wasteful number, since it uses less digits than its factorization.

1115870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 1115870 is about 1056.3474807089. The cubic root of 1115870 is about 103.7220759998.

The spelling of 1115870 in words is "one million, one hundred fifteen thousand, eight hundred seventy".