382163855 has 4 divisors (see below), whose sum is σ = 458596632. Its totient is φ = 305731080.

The previous prime is 382163813. The next prime is 382163857. The reversal of 382163855 is 558361283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558361283 = 809 ⋅690187.

It is not a de Polignac number, because 382163855 - 2¹⁸ = 381901711 is a prime.

It is a super-2 number, since 2×382163855² = 292098424136922050, 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 (382163857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38216381 + ... + 38216390.

It is an arithmetic number, because the mean of its divisors is an integer number (114649158).

Almost surely, 2^382163855 is an apocalyptic number.

382163855 is a deficient number, since it is larger than the sum of its proper divisors (76432777).

382163855 is an equidigital number, since it uses as much as digits as its factorization.

382163855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76432776.

The product of its digits is 172800, while the sum is 41.

The square root of 382163855 is about 19549.0116118437. The cubic root of 382163855 is about 725.6878798325.

It can be divided in two parts, 3821 and 63855, that added together give a palindrome (67676).

The spelling of 382163855 in words is "three hundred eighty-two million, one hundred sixty-three thousand, eight hundred fifty-five".