390244 has 6 divisors (see below), whose sum is σ = 682934. Its totient is φ = 195120.

The previous prime is 390223. The next prime is 390263. The reversal of 390244 is 442093.

It can be written as a sum of positive squares in only one way, i.e., 238144 + 152100 = 488^2 + 390^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48777 + ... + 48784.

2³⁹⁰²⁴⁴ is an apocalyptic number.

It is an amenable number.

390244 is a deficient number, since it is larger than the sum of its proper divisors (292690).

390244 is a wasteful number, since it uses less digits than its factorization.

390244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97565 (or 97563 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 390244 is about 624.6951256413. The cubic root of 390244 is about 73.0766693080.

The spelling of 390244 in words is "three hundred ninety thousand, two hundred forty-four".