381824316 has 18 divisors (see below), whose sum is σ = 965167112. Its totient is φ = 127274760.

The previous prime is 381824293. The next prime is 381824327. The reversal of 381824316 is 613428183.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 10606231 = 381824316 / (3 + 8 + 1 + 8 + 2 + 4 + 3 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5303080 + ... + 5303151.

Almost surely, 2^381824316 is an apocalyptic number.

381824316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381824316 is an abundant number, since it is smaller than the sum of its proper divisors (583342796).

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

381824316 is a wasteful number, since it uses less digits than its factorization.

381824316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606241 (or 10606236 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 381824316 is about 19540.3253811189. The cubic root of 381824316 is about 725.4729001912.

The spelling of 381824316 in words is "three hundred eighty-one million, eight hundred twenty-four thousand, three hundred sixteen".