1224618 has 16 divisors (see below), whose sum is σ = 2496096. Its totient is φ = 400400.

The previous prime is 1224599. The next prime is 1224637. The reversal of 1224618 is 8164221.

It is an interprime number because it is at equal distance from previous prime (1224599) and next prime (1224637).

It is an Ulam 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, 1608 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (156006).

2^1224618 is an apocalyptic number.

1224618 is an abundant number, since it is smaller than the sum of its proper divisors (1271478).

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

1224618 is a wasteful number, since it uses less digits than its factorization.

1224618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909.

The product of its digits is 768, while the sum is 24.

The square root of 1224618 is about 1106.6245975940. The cubic root of 1224618 is about 106.9876248535.

Adding to 1224618 its reverse (8164221), we get a palindrome (9388839).

The spelling of 1224618 in words is "one million, two hundred twenty-four thousand, six hundred eighteen".