1117048878 has 24 divisors (see below), whose sum is σ = 2640297816. Its totient is φ = 338499600.

The previous prime is 1117048871. The next prime is 1117048901. The reversal of 1117048878 is 8788407111.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117048871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2820633 + ... + 2821028.

It is an arithmetic number, because the mean of its divisors is an integer number (110012409).

Almost surely, 2^1117048878 is an apocalyptic number.

1117048878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1117048878 is an abundant number, since it is smaller than the sum of its proper divisors (1523248938).

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

1117048878 is a wasteful number, since it uses less digits than its factorization.

1117048878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641680 (or 5641677 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 45.

The square root of 1117048878 is about 33422.2811609262. The cubic root of 1117048878 is about 1037.5858940451.

The spelling of 1117048878 in words is "one billion, one hundred seventeen million, forty-eight thousand, eight hundred seventy-eight".