1918941084 has 24 divisors (see below), whose sum is σ = 4975032720. Its totient is φ = 639646992.

The previous prime is 1918941077. The next prime is 1918941097. The reversal of 1918941084 is 4801498191.

1918941084 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883879 + ... + 8884094.

It is an arithmetic number, because the mean of its divisors is an integer number (207293030).

Almost surely, 2^1918941084 is an apocalyptic number.

It is an amenable number.

1918941084 is an abundant number, since it is smaller than the sum of its proper divisors (3056091636).

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

1918941084 is a wasteful number, since it uses less digits than its factorization.

1918941084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17767986 (or 17767978 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 1918941084 is about 43805.7197635195. The cubic root of 1918941084 is about 1242.6644674309.

The spelling of 1918941084 in words is "one billion, nine hundred eighteen million, nine hundred forty-one thousand, eighty-four".