1218630036 has 48 divisors (see below), whose sum is σ = 3107929664. Its totient is φ = 369363456.

The previous prime is 1218630029. The next prime is 1218630043. The reversal of 1218630036 is 6300368121.

It is an interprime number because it is at equal distance from previous prime (1218630029) and next prime (1218630043).

It is a super-2 number, since 2×1218630036² = 2970118329282722592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1218629985 and 1218630012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47845 + ... + 68748.

Almost surely, 2^1218630036 is an apocalyptic number.

It is an amenable number.

1218630036 is an abundant number, since it is smaller than the sum of its proper divisors (1889299628).

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

1218630036 is a wasteful number, since it uses less digits than its factorization.

1218630036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116680 (or 116678 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1218630036 is about 34908.8819070448. The cubic root of 1218630036 is about 1068.1296220795.

Adding to 1218630036 its reverse (6300368121), we get a palindrome (7518998157).

The spelling of 1218630036 in words is "one billion, two hundred eighteen million, six hundred thirty thousand, thirty-six".