384822155 has 4 divisors (see below), whose sum is σ = 461786592. Its totient is φ = 307857720.

The previous prime is 384822133. The next prime is 384822157. The reversal of 384822155 is 551228483.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 384822155 - 2⁶ = 384822091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384822157) 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, 38482211 + ... + 38482220.

It is an arithmetic number, because the mean of its divisors is an integer number (115446648).

Almost surely, 2^384822155 is an apocalyptic number.

384822155 is a deficient number, since it is larger than the sum of its proper divisors (76964437).

384822155 is an equidigital number, since it uses as much as digits as its factorization.

384822155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76964436.

The product of its digits is 76800, while the sum is 38.

The square root of 384822155 is about 19616.8844366275. The cubic root of 384822155 is about 727.3666016632.

The spelling of 384822155 in words is "three hundred eighty-four million, eight hundred twenty-two thousand, one hundred fifty-five".