365216404 has 72 divisors (see below), whose sum is σ = 791169120. Its totient is φ = 146664000.

The previous prime is 365216399. The next prime is 365216413. The reversal of 365216404 is 404612563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375639 + ... + 376609.

It is an arithmetic number, because the mean of its divisors is an integer number (10988460).

Almost surely, 2^365216404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365216404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395584560).

365216404 is an abundant number, since it is smaller than the sum of its proper divisors (425952716).

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

365216404 is a wasteful number, since it uses less digits than its factorization.

365216404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 365216404 is about 19110.6358868563. The cubic root of 365216404 is about 714.7981590764.

Adding to 365216404 its reverse (404612563), we get a palindrome (769828967).

The spelling of 365216404 in words is "three hundred sixty-five million, two hundred sixteen thousand, four hundred four".