365681216 has 14 divisors (see below), whose sum is σ = 725648790. Its totient is φ = 182840576.

The previous prime is 365681207. The next prime is 365681219. The reversal of 365681216 is 612186563.

It can be written as a sum of positive squares in only one way, i.e., 199374400 + 166306816 = 14120^2 + 12896^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 365681216.

It is not an unprimeable number, because it can be changed into a prime (365681219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2856821 + ... + 2856948.

Almost surely, 2^365681216 is an apocalyptic number.

It is an amenable number.

365681216 is a deficient number, since it is larger than the sum of its proper divisors (359967574).

365681216 is an equidigital number, since it uses as much as digits as its factorization.

365681216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713781 (or 5713771 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 365681216 is about 19122.7931014274. The cubic root of 365681216 is about 715.1012724336.

The spelling of 365681216 in words is "three hundred sixty-five million, six hundred eighty-one thousand, two hundred sixteen".