1117717240 has 64 divisors (see below), whose sum is σ = 2576901600. Its totient is φ = 436174848.

The previous prime is 1117717219. The next prime is 1117717261. The reversal of 1117717240 is 427177111.

It is an interprime number because it is at equal distance from previous prime (1117717219) and next prime (1117717261).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321592 + ... + 325048.

Almost surely, 2^1117717240 is an apocalyptic number.

1117717240 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 1117717240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1288450800).

1117717240 is an abundant number, since it is smaller than the sum of its proper divisors (1459184360).

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

1117717240 is a wasteful number, since it uses less digits than its factorization.

1117717240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 31.

The square root of 1117717240 is about 33432.2784147297. The cubic root of 1117717240 is about 1037.7927918013.

The spelling of 1117717240 in words is "one billion, one hundred seventeen million, seven hundred seventeen thousand, two hundred forty".