384515942 has 4 divisors (see below), whose sum is σ = 576773916. Its totient is φ = 192257970.

The previous prime is 384515941. The next prime is 384515953. The reversal of 384515942 is 249515483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249515483 = 7 ⋅35645069.

It is a self number, because there is not a number n which added to its sum of digits gives 384515942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384515941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96128984 + ... + 96128987.

It is an arithmetic number, because the mean of its divisors is an integer number (144193479).

Almost surely, 2^384515942 is an apocalyptic number.

384515942 is a deficient number, since it is larger than the sum of its proper divisors (192257974).

384515942 is a wasteful number, since it uses less digits than its factorization.

384515942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192257973.

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

The square root of 384515942 is about 19609.0780507397. The cubic root of 384515942 is about 727.1736222920.

The spelling of 384515942 in words is "three hundred eighty-four million, five hundred fifteen thousand, nine hundred forty-two".