390532 has 12 divisors (see below), whose sum is σ = 691740. Its totient is φ = 192896.

The previous prime is 390527. The next prime is 390539. The reversal of 390532 is 235093.

390532 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 298116 = 304^2 + 546^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 904.

It is an arithmetic number, because the mean of its divisors is an integer number (57645).

390532 is a Friedman number, since it can be written as 5^(2+0)^3-93, using all its digits and the basic arithmetic operations.

2³⁹⁰⁵³² is an apocalyptic number.

It is an amenable number.

390532 is a deficient number, since it is larger than the sum of its proper divisors (301208).

390532 is a wasteful number, since it uses less digits than its factorization.

390532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 390532 is about 624.9255955712. The cubic root of 390532 is about 73.0946417437.

The spelling of 390532 in words is "three hundred ninety thousand, five hundred thirty-two".