390361 has 4 divisors (see below), whose sum is σ = 399924. Its totient is φ = 380800.

The previous prime is 390359. The next prime is 390367. The reversal of 390361 is 163093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81225 + 309136 = 285^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 390361 - 2¹ = 390359 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390367) 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, 4720 + ... + 4801.

It is an arithmetic number, because the mean of its divisors is an integer number (99981).

2³⁹⁰³⁶¹ is an apocalyptic number.

It is an amenable number.

390361 is a deficient number, since it is larger than the sum of its proper divisors (9563).

390361 is an equidigital number, since it uses as much as digits as its factorization.

390361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 390361 is about 624.7887643036. The cubic root of 390361 is about 73.0839716761.

The spelling of 390361 in words is "three hundred ninety thousand, three hundred sixty-one".