381834368 has 16 divisors (see below), whose sum is σ = 760685910. Its totient is φ = 190917120.

The previous prime is 381834337. The next prime is 381834373. The reversal of 381834368 is 863438183.

It can be written as a sum of positive squares in only one way, i.e., 344770624 + 37063744 = 18568^2 + 6088^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491413 + ... + 1491668.

Almost surely, 2^381834368 is an apocalyptic number.

It is an amenable number.

381834368 is a deficient number, since it is larger than the sum of its proper divisors (378851542).

381834368 is an equidigital number, since it uses as much as digits as its factorization.

381834368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983095 (or 2983083 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 381834368 is about 19540.5825911102. The cubic root of 381834368 is about 725.4792664608.

The spelling of 381834368 in words is "three hundred eighty-one million, eight hundred thirty-four thousand, three hundred sixty-eight".