1228618 has 8 divisors (see below), whose sum is σ = 1851300. Its totient is φ = 611520.

The previous prime is 1228613. The next prime is 1228631. The reversal of 1228618 is 8168221.

It can be written as a sum of positive squares in 2 ways, for example, as 1054729 + 173889 = 1027^2 + 417^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1228613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793 + ... + 1756.

2^1228618 is an apocalyptic number.

1228618 is a deficient number, since it is larger than the sum of its proper divisors (622682).

1228618 is a wasteful number, since it uses less digits than its factorization.

1228618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792.

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

The square root of 1228618 is about 1108.4304218128. The cubic root of 1228618 is about 107.1039836966.

The spelling of 1228618 in words is "one million, two hundred twenty-eight thousand, six hundred eighteen".