381743284 has 18 divisors (see below), whose sum is σ = 723393510. Its totient is φ = 176188896.

The previous prime is 381743281. The next prime is 381743291. The reversal of 381743284 is 482347183.

It can be written as a sum of positive squares in 3 ways, for example, as 40602384 + 341140900 = 6372^2 + 18470^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381743281) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 281679 + ... + 283030.

Almost surely, 2^381743284 is an apocalyptic number.

It is an amenable number.

381743284 is a deficient number, since it is larger than the sum of its proper divisors (341650226).

381743284 is a wasteful number, since it uses less digits than its factorization.

381743284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564739 (or 564724 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 381743284 is about 19538.2518153493. The cubic root of 381743284 is about 725.4215758197.

The spelling of 381743284 in words is "three hundred eighty-one million, seven hundred forty-three thousand, two hundred eighty-four".