2128618 has 8 divisors (see below), whose sum is σ = 3231648. Its totient is φ = 1051404.

The previous prime is 2128603. The next prime is 2128631. The reversal of 2128618 is 8168212.

2128618 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 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 3 ways as a sum of consecutive naturals, for example, 6246 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (403956).

2^2128618 is an apocalyptic number.

2128618 is a deficient number, since it is larger than the sum of its proper divisors (1103030).

2128618 is a wasteful number, since it uses less digits than its factorization.

2128618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908.

The product of its digits is 1536, while the sum is 28.

The square root of 2128618 is about 1458.9784097100. The cubic root of 2128618 is about 128.6370020593.

The spelling of 2128618 in words is "two million, one hundred twenty-eight thousand, six hundred eighteen".