390782 has 16 divisors (see below), whose sum is σ = 678912. Its totient is φ = 165240.

The previous prime is 390781. The next prime is 390791. The reversal of 390782 is 287093.

390782 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 390782.

It is not an unprimeable number, because it can be changed into a prime (390781) 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, 1307 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (42432).

2³⁹⁰⁷⁸² is an apocalyptic number.

390782 is a deficient number, since it is larger than the sum of its proper divisors (288130).

390782 is a wasteful number, since it uses less digits than its factorization.

390782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 390782 is about 625.1255873822. The cubic root of 390782 is about 73.1102356536.

The spelling of 390782 in words is "three hundred ninety thousand, seven hundred eighty-two".