1117772280 has 96 divisors (see below), whose sum is σ = 3823981200. Its totient is φ = 282382848.

The previous prime is 1117772273. The next prime is 1117772297. The reversal of 1117772280 is 822777111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74869 + ... + 88548.

Almost surely, 2^1117772280 is an apocalyptic number.

1117772280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117772280 is an abundant number, since it is smaller than the sum of its proper divisors (2706208920).

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

1117772280 is a wasteful number, since it uses less digits than its factorization.

1117772280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163453 (or 163446 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 36.

The square root of 1117772280 is about 33433.1015611774. The cubic root of 1117772280 is about 1037.8098262758.

The spelling of 1117772280 in words is "one billion, one hundred seventeen million, seven hundred seventy-two thousand, two hundred eighty".