361387856 has 20 divisors (see below), whose sum is σ = 707410452. Its totient is φ = 178830336.

The previous prime is 361387849. The next prime is 361387903. The reversal of 361387856 is 658783163.

It is a happy number.

361387856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 288456256 + 72931600 = 16984^2 + 8540^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 361387856.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 114875 + ... + 117978.

Almost surely, 2^361387856 is an apocalyptic number.

It is an amenable number.

361387856 is a deficient number, since it is larger than the sum of its proper divisors (346022596).

361387856 is a wasteful number, since it uses less digits than its factorization.

361387856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232958 (or 232952 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 361387856 is about 19010.2039968013. The cubic root of 361387856 is about 712.2916471321.

The spelling of 361387856 in words is "three hundred sixty-one million, three hundred eighty-seven thousand, eight hundred fifty-six".