1117442180 has 24 divisors (see below), whose sum is σ = 2410052568. Its totient is φ = 434896128.

The previous prime is 1117442173. The next prime is 1117442201. The reversal of 1117442180 is 812447111.

It can be written as a sum of positive squares in 4 ways, for example, as 634233856 + 483208324 = 25184^2 + 21982^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754289 + ... + 755768.

It is an arithmetic number, because the mean of its divisors is an integer number (100418857).

Almost surely, 2^1117442180 is an apocalyptic number.

1117442180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117442180 is an abundant number, since it is smaller than the sum of its proper divisors (1292610388).

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

1117442180 is a wasteful number, since it uses less digits than its factorization.

1117442180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510103 (or 1510101 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1117442180 is about 33428.1644724924. The cubic root of 1117442180 is about 1037.7076543758.

Adding to 1117442180 its reverse (812447111), we get a palindrome (1929889291).

The spelling of 1117442180 in words is "one billion, one hundred seventeen million, four hundred forty-two thousand, one hundred eighty".