2285661918 has 8 divisors (see below), whose sum is σ = 4571323848. Its totient is φ = 761887304.

The previous prime is 2285661893. The next prime is 2285661953. The reversal of 2285661918 is 8191665822.

It is a sphenic number, since it is the product of 3 distinct primes.

2285661918 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190471821 + ... + 190471832.

It is an arithmetic number, because the mean of its divisors is an integer number (571415481).

Almost surely, 2^2285661918 is an apocalyptic number.

2285661918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2285661918 is a wasteful number, since it uses less digits than its factorization.

2285661918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380943658.

The product of its digits is 414720, while the sum is 48.

The square root of 2285661918 is about 47808.5966955735. The cubic root of 2285661918 is about 1317.2574520228.

The spelling of 2285661918 in words is "two billion, two hundred eighty-five million, six hundred sixty-one thousand, nine hundred eighteen".