381873684 has 24 divisors (see below), whose sum is σ = 909998208. Its totient is φ = 124582720.

The previous prime is 381873683. The next prime is 381873689. The reversal of 381873684 is 486378183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381873683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337977 + ... + 339104.

It is an arithmetic number, because the mean of its divisors is an integer number (37916592).

Almost surely, 2^381873684 is an apocalyptic number.

It is an amenable number.

381873684 is an abundant number, since it is smaller than the sum of its proper divisors (528124524).

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

381873684 is a wasteful number, since it uses less digits than its factorization.

381873684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677135 (or 677133 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 381873684 is about 19541.5885741155. The cubic root of 381873684 is about 725.5041655325.

The spelling of 381873684 in words is "three hundred eighty-one million, eight hundred seventy-three thousand, six hundred eighty-four".