816341472 has 72 divisors (see below), whose sum is σ = 2324892024. Its totient is φ = 271713024.

The previous prime is 816341453. The next prime is 816341497. The reversal of 816341472 is 274143618.

816341472 is a `hidden beast` number, since 8 + 1 + 634 + 14 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244003 + ... + 247325.

It is an arithmetic number, because the mean of its divisors is an integer number (32290167).

Almost surely, 2^816341472 is an apocalyptic number.

It is an amenable number.

816341472 is an abundant number, since it is smaller than the sum of its proper divisors (1508550552).

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

816341472 is a wasteful number, since it uses less digits than its factorization.

816341472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192 (or 4181 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 816341472 is about 28571.6900445178. The cubic root of 816341472 is about 934.5960763030.

The spelling of 816341472 in words is "eight hundred sixteen million, three hundred forty-one thousand, four hundred seventy-two".