1117240 has 64 divisors (see below), whose sum is σ = 2799360. Its totient is φ = 399360.

The previous prime is 1117199. The next prime is 1117243. The reversal of 1117240 is 427111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117243) 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 15 ways as a sum of consecutive naturals, for example, 21054 + ... + 21106.

It is an arithmetic number, because the mean of its divisors is an integer number (43740).

2^1117240 is an apocalyptic number.

1117240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1117240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399680).

1117240 is an abundant number, since it is smaller than the sum of its proper divisors (1682120).

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

1117240 is a wasteful number, since it uses less digits than its factorization.

1117240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1117240 is about 1056.9957426594. The cubic root of 1117240 is about 103.7645066085.

The spelling of 1117240 in words is "one million, one hundred seventeen thousand, two hundred forty".