381347516 has 12 divisors (see below), whose sum is σ = 728027160. Its totient is φ = 173339760.

The previous prime is 381347501. The next prime is 381347531. The reversal of 381347516 is 615743183.

381347516 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (381347501) and next prime (381347531).

381347516 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381347516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4333451 + ... + 4333538.

It is an arithmetic number, because the mean of its divisors is an integer number (60668930).

Almost surely, 2^381347516 is an apocalyptic number.

It is an amenable number.

381347516 is a deficient number, since it is larger than the sum of its proper divisors (346679644).

381347516 is a wasteful number, since it uses less digits than its factorization.

381347516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667004 (or 8667002 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 381347516 is about 19528.1211589851. The cubic root of 381347516 is about 725.1707982851.

The spelling of 381347516 in words is "three hundred eighty-one million, three hundred forty-seven thousand, five hundred sixteen".