384681894 has 8 divisors (see below), whose sum is σ = 769363800. Its totient is φ = 128227296.

The previous prime is 384681881. The next prime is 384681931. The reversal of 384681894 is 498186483.

It is a sphenic number, since it is the product of 3 distinct primes.

384681894 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32056819 + ... + 32056830.

It is an arithmetic number, because the mean of its divisors is an integer number (96170475).

Almost surely, 2^384681894 is an apocalyptic number.

384681894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

384681894 is a wasteful number, since it uses less digits than its factorization.

384681894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64113654.

The product of its digits is 1327104, while the sum is 51.

The square root of 384681894 is about 19613.3091037693. The cubic root of 384681894 is about 727.2782200882.

The spelling of 384681894 in words is "three hundred eighty-four million, six hundred eighty-one thousand, eight hundred ninety-four".