390349 has 4 divisors (see below), whose sum is σ = 395136. Its totient is φ = 385564.

The previous prime is 390347. The next prime is 390353. The reversal of 390349 is 943093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 390349 - 2¹ = 390347 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390343) 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, 2269 + ... + 2434.

It is an arithmetic number, because the mean of its divisors is an integer number (98784).

2³⁹⁰³⁴⁹ is an apocalyptic number.

It is an amenable number.

390349 is a deficient number, since it is larger than the sum of its proper divisors (4787).

390349 is an equidigital number, since it uses as much as digits as its factorization.

390349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 390349 is about 624.7791609841. The cubic root of 390349 is about 73.0832227824.

The spelling of 390349 in words is "three hundred ninety thousand, three hundred forty-nine".