390670 has 16 divisors (see below), whose sum is σ = 803808. Its totient is φ = 133920.

The previous prime is 390653. The next prime is 390671. The reversal of 390670 is 76093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390671) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2721 + ... + 2860.

It is an arithmetic number, because the mean of its divisors is an integer number (50238).

2³⁹⁰⁶⁷⁰ is an apocalyptic number.

390670 is an abundant number, since it is smaller than the sum of its proper divisors (413138).

It is a weird number, because it is abundant, but not a pseudoperfect number.

390670 is a wasteful number, since it uses less digits than its factorization.

390670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 390670 is about 625.0359989633. The cubic root of 390670 is about 73.1032504046.

The spelling of 390670 in words is "three hundred ninety thousand, six hundred seventy".