390452 has 6 divisors (see below), whose sum is σ = 683298. Its totient is φ = 195224.

The previous prime is 390449. The next prime is 390463. The reversal of 390452 is 254093.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 13456 = 614^2 + 116^2 .

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 390452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48803 + ... + 48810.

It is an arithmetic number, because the mean of its divisors is an integer number (113883).

2³⁹⁰⁴⁵² is an apocalyptic number.

It is an amenable number.

390452 is a deficient number, since it is larger than the sum of its proper divisors (292846).

390452 is a wasteful number, since it uses less digits than its factorization.

390452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97617 (or 97615 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 390452 is about 624.8615846730. The cubic root of 390452 is about 73.0896502870.

The spelling of 390452 in words is "three hundred ninety thousand, four hundred fifty-two".