384540018 has 8 divisors (see below), whose sum is σ = 769080048. Its totient is φ = 128180004.

The previous prime is 384540007. The next prime is 384540019. The reversal of 384540018 is 810045483.

It is a sphenic number, since it is the product of 3 distinct primes.

384540018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (384540019) 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, 32044996 + ... + 32045007.

It is an arithmetic number, because the mean of its divisors is an integer number (96135006).

Almost surely, 2^384540018 is an apocalyptic number.

384540018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384540018 is a wasteful number, since it uses less digits than its factorization.

384540018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64090008.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 384540018 is about 19609.6919404666. The cubic root of 384540018 is about 727.1887990072.

The spelling of 384540018 in words is "three hundred eighty-four million, five hundred forty thousand, eighteen".