1216300038 has 32 divisors (see below), whose sum is σ = 2514331104. Its totient is φ = 391951872.

The previous prime is 1216300027. The next prime is 1216300039. The reversal of 1216300038 is 8300036121.

It is a junction number, because it is equal to n+sod(n) for n = 1216299990 and 1216300017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216300039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17406 + ... + 52302.

It is an arithmetic number, because the mean of its divisors is an integer number (78572847).

Almost surely, 2^1216300038 is an apocalyptic number.

1216300038 is an abundant number, since it is smaller than the sum of its proper divisors (1298031066).

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

1216300038 is a wasteful number, since it uses less digits than its factorization.

1216300038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35096.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1216300038 is about 34875.4933728542. The cubic root of 1216300038 is about 1067.4484397579.

Adding to 1216300038 its reverse (8300036121), we get a palindrome (9516336159).

The spelling of 1216300038 in words is "one billion, two hundred sixteen million, three hundred thousand, thirty-eight".