2228861618 has 8 divisors (see below), whose sum is σ = 3345686400. Its totient is φ = 1113632820.

The previous prime is 2228861587. The next prime is 2228861717. The reversal of 2228861618 is 8161688222.

2228861618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2228861618² = 9935648224387155848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395498 + ... + 401093.

It is an arithmetic number, because the mean of its divisors is an integer number (418210800).

Almost surely, 2^2228861618 is an apocalyptic number.

2228861618 is a deficient number, since it is larger than the sum of its proper divisors (1116824782).

2228861618 is a wasteful number, since it uses less digits than its factorization.

2228861618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797992.

The product of its digits is 147456, while the sum is 44.

The square root of 2228861618 is about 47210.8209841769. The cubic root of 2228861618 is about 1306.2542060165.

The spelling of 2228861618 in words is "two billion, two hundred twenty-eight million, eight hundred sixty-one thousand, six hundred eighteen".