1117155740 has 12 divisors (see below), whose sum is σ = 2346027096. Its totient is φ = 446862288.

The previous prime is 1117155727. The next prime is 1117155761. The reversal of 1117155740 is 475517111.

It is a junction number, because it is equal to n+sod(n) for n = 1117155697 and 1117155706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27928874 + ... + 27928913.

It is an arithmetic number, because the mean of its divisors is an integer number (195502258).

Almost surely, 2^1117155740 is an apocalyptic number.

1117155740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117155740 is an abundant number, since it is smaller than the sum of its proper divisors (1228871356).

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

1117155740 is a wasteful number, since it uses less digits than its factorization.

1117155740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55857796 (or 55857794 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 32.

The square root of 1117155740 is about 33423.8797867632. The cubic root of 1117155740 is about 1037.6189797260.

The spelling of 1117155740 in words is "one billion, one hundred seventeen million, one hundred fifty-five thousand, seven hundred forty".