1218036 has 12 divisors (see below), whose sum is σ = 2842112. Its totient is φ = 406008.

The previous prime is 1218017. The next prime is 1218043. The reversal of 1218036 is 6308121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1218036² = 2967223394592, which contains 22 as substring.

It is a congruent number.

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, 50740 + ... + 50763.

2^1218036 is an apocalyptic number.

It is an amenable number.

1218036 is an abundant number, since it is smaller than the sum of its proper divisors (1624076).

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

1218036 is a wasteful number, since it uses less digits than its factorization.

1218036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101510 (or 101508 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1218036 is about 1103.6466825937. The cubic root of 1218036 is about 106.7956036289.

The spelling of 1218036 in words is "one million, two hundred eighteen thousand, thirty-six".