384242020 has 24 divisors (see below), whose sum is σ = 809235000. Its totient is φ = 153253632.

The previous prime is 384241987. The next prime is 384242051. The reversal of 384242020 is 20242483.

It can be written as a sum of positive squares in 4 ways, for example, as 154355776 + 229886244 = 12424^2 + 15162^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20545 + ... + 34504.

It is an arithmetic number, because the mean of its divisors is an integer number (33718125).

Almost surely, 2^384242020 is an apocalyptic number.

It is an amenable number.

384242020 is an abundant number, since it is smaller than the sum of its proper divisors (424992980).

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

384242020 is a wasteful number, since it uses less digits than its factorization.

384242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55407 (or 55405 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 384242020 is about 19602.0922352692. The cubic root of 384242020 is about 727.0009062878. Note that the first 3 decimals are identical.

The spelling of 384242020 in words is "three hundred eighty-four million, two hundred forty-two thousand, twenty".