390494 has 16 divisors (see below), whose sum is σ = 659232. Its totient is φ = 172128.

The previous prime is 390493. The next prime is 390499. The reversal of 390494 is 494093.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 924.

It is an arithmetic number, because the mean of its divisors is an integer number (41202).

2³⁹⁰⁴⁹⁴ is an apocalyptic number.

390494 is a deficient number, since it is larger than the sum of its proper divisors (268738).

390494 is a wasteful number, since it uses less digits than its factorization.

390494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 390494 is about 624.8951912121. The cubic root of 390494 is about 73.0922708868.

The spelling of 390494 in words is "three hundred ninety thousand, four hundred ninety-four".