382143447 has 32 divisors (see below), whose sum is σ = 681075200. Its totient is φ = 206872704.

The previous prime is 382143407. The next prime is 382143449. The reversal of 382143447 is 744341283.

It is not a de Polignac number, because 382143447 - 2¹⁹ = 381619159 is a prime.

It is a super-2 number, since 2×382143447² = 292067228170083618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382143449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49618 + ... + 56799.

It is an arithmetic number, because the mean of its divisors is an integer number (21283600).

Almost surely, 2^382143447 is an apocalyptic number.

382143447 is a deficient number, since it is larger than the sum of its proper divisors (298931753).

382143447 is a wasteful number, since it uses less digits than its factorization.

382143447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106452 (or 106446 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 382143447 is about 19548.4896347518. The cubic root of 382143447 is about 725.6749620734.

It can be divided in two parts, 38 and 2143447, that added together give a triangular number (2143485 = T₂₀₇₀).

The spelling of 382143447 in words is "three hundred eighty-two million, one hundred forty-three thousand, four hundred forty-seven".