384740 has 12 divisors (see below), whose sum is σ = 807996. Its totient is φ = 153888.

The previous prime is 384737. The next prime is 384751. The reversal of 384740 is 47483.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 295936 = 298^2 + 544^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384740.

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, 9599 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (67333).

2³⁸⁴⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

384740 is an abundant number, since it is smaller than the sum of its proper divisors (423256).

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

384740 is a wasteful number, since it uses less digits than its factorization.

384740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19246 (or 19244 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 384740 is about 620.2741329445. The cubic root of 384740 is about 72.7314836577.

The spelling of 384740 in words is "three hundred eighty-four thousand, seven hundred forty".