395724 has 36 divisors (see below), whose sum is σ = 1075704. Its totient is φ = 112896.

The previous prime is 395719. The next prime is 395737. The reversal of 395724 is 427593.

395724 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 395691 and 395700.

It is an unprimeable number.

395724 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252 + ... + 924.

2³⁹⁵⁷²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537852).

395724 is an abundant number, since it is smaller than the sum of its proper divisors (679980).

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

395724 is a wasteful number, since it uses less digits than its factorization.

395724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 685 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 395724 is about 629.0659742825. The cubic root of 395724 is about 73.4171401836.

The spelling of 395724 in words is "three hundred ninety-five thousand, seven hundred twenty-four".