384016640 has 72 divisors (see below), whose sum is σ = 1051270080. Its totient is φ = 131659776.

The previous prime is 384016639. The next prime is 384016669. The reversal of 384016640 is 46610483.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 384016597 and 384016606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12470 + ... + 30389.

Almost surely, 2^384016640 is an apocalyptic number.

It is an amenable number.

384016640 is an abundant number, since it is smaller than the sum of its proper divisors (667253440).

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

384016640 is an equidigital number, since it uses as much as digits as its factorization.

384016640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42887 (or 42873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 384016640 is about 19596.3425158880. The cubic root of 384016640 is about 726.8587359002.

The spelling of 384016640 in words is "three hundred eighty-four million, sixteen thousand, six hundred forty".