1117540 has 24 divisors (see below), whose sum is σ = 2382912. Its totient is φ = 440160.

The previous prime is 1117513. The next prime is 1117549. The reversal of 1117540 is 457111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117549) 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, 1027 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (99288).

2^1117540 is an apocalyptic number.

1117540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117540 is an abundant number, since it is smaller than the sum of its proper divisors (1265372).

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

1117540 is a wasteful number, since it uses less digits than its factorization.

1117540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1117540 is about 1057.1376447748. The cubic root of 1117540 is about 103.7737933527.

The spelling of 1117540 in words is "one million, one hundred seventeen thousand, five hundred forty".