18880116 has 24 divisors (see below), whose sum is σ = 45475584. Its totient is φ = 6090240.

The previous prime is 18880111. The next prime is 18880117. The reversal of 18880116 is 61108881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18880111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25005 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (1894816).

Almost surely, 2^18880116 is an apocalyptic number.

It is an amenable number.

18880116 is an abundant number, since it is smaller than the sum of its proper divisors (26595468).

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

18880116 is a wasteful number, since it uses less digits than its factorization.

18880116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50791 (or 50789 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 18880116 is about 4345.1255447915. The cubic root of 18880116 is about 266.2777546063.

Adding to 18880116 its reverse (61108881), we get a palindrome (79988997).

The spelling of 18880116 in words is "eighteen million, eight hundred eighty thousand, one hundred sixteen".