390064 has 10 divisors (see below), whose sum is σ = 755780. Its totient is φ = 195024.

The previous prime is 390043. The next prime is 390067. The reversal of 390064 is 460093.

It is not an unprimeable number, because it can be changed into a prime (390067) by changing a digit.

390064 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 12174 + ... + 12205.

It is an arithmetic number, because the mean of its divisors is an integer number (75578).

2³⁹⁰⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

390064 is a deficient number, since it is larger than the sum of its proper divisors (365716).

390064 is a wasteful number, since it uses less digits than its factorization.

390064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24387 (or 24381 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 390064 is about 624.5510387470. The cubic root of 390064 is about 73.0654320450.

The spelling of 390064 in words is "three hundred ninety thousand, sixty-four".