1117355940 has 144 divisors (see below), whose sum is σ = 3704762880. Its totient is φ = 271365120.

The previous prime is 1117355891. The next prime is 1117355959. The reversal of 1117355940 is 495537111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1117355895 and 1117355904.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88971 + ... + 100749.

It is an arithmetic number, because the mean of its divisors is an integer number (25727520).

Almost surely, 2^1117355940 is an apocalyptic number.

1117355940 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 1117355940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852381440).

1117355940 is an abundant number, since it is smaller than the sum of its proper divisors (2587406940).

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

1117355940 is a wasteful number, since it uses less digits than its factorization.

1117355940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11842 (or 11837 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 1117355940 is about 33426.8745173700. The cubic root of 1117355940 is about 1037.6809582264.

The spelling of 1117355940 in words is "one billion, one hundred seventeen million, three hundred fifty-five thousand, nine hundred forty".