384540020 has 48 divisors (see below), whose sum is σ = 818028288. Its totient is φ = 151831680.

The previous prime is 384540019. The next prime is 384540049. The reversal of 384540020 is 20045483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830309 + ... + 830771.

It is an arithmetic number, because the mean of its divisors is an integer number (17042256).

Almost surely, 2^384540020 is an apocalyptic number.

It is an amenable number.

384540020 is an abundant number, since it is smaller than the sum of its proper divisors (433488268).

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

384540020 is a wasteful number, since it uses less digits than its factorization.

384540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 384540020 is about 19609.6919914618. The cubic root of 384540020 is about 727.1888002679.

The spelling of 384540020 in words is "three hundred eighty-four million, five hundred forty thousand, twenty".