384642848 has 18 divisors (see below), whose sum is σ = 757484091. Its totient is φ = 192265952.

The previous prime is 384642803. The next prime is 384642871. The reversal of 384642848 is 848246483.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 192321424 + 192321424 = 13868^2 + 13868^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13868.

It is a super-2 number, since 2×384642848² = 295900241035102208, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 109211 + ... + 112677.

Almost surely, 2^384642848 is an apocalyptic number.

It is an amenable number.

384642848 is a deficient number, since it is larger than the sum of its proper divisors (372841243).

384642848 is an frugal number, since it uses more digits than its factorization.

384642848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944 (or 3469 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 47.

The square root of 384642848 is about 19612.3136829901. The cubic root of 384642848 is about 727.2536125128.

Multiplying 384642848 by its product of digits (1179648), we get a square (453743166357504 = 21301248²).

The spelling of 384642848 in words is "three hundred eighty-four million, six hundred forty-two thousand, eight hundred forty-eight".