384066840 has 32 divisors (see below), whose sum is σ = 1152200880. Its totient is φ = 102417792.

The previous prime is 384066833. The next prime is 384066853. The reversal of 384066840 is 48660483.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600159 + ... + 1600398.

Almost surely, 2^384066840 is an apocalyptic number.

384066840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384066840 is an abundant number, since it is smaller than the sum of its proper divisors (768134040).

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

384066840 is a wasteful number, since it uses less digits than its factorization.

384066840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200571 (or 3200567 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 384066840 is about 19597.6233252913. The cubic root of 384066840 is about 726.8904070266.

The spelling of 384066840 in words is "three hundred eighty-four million, sixty-six thousand, eight hundred forty".