385390 has 16 divisors (see below), whose sum is σ = 734832. Its totient is φ = 145024.

The previous prime is 385379. The next prime is 385391. The reversal of 385390 is 93583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385391) 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, 964 + ... + 1303.

It is an arithmetic number, because the mean of its divisors is an integer number (45927).

2³⁸⁵³⁹⁰ is an apocalyptic number.

385390 is a deficient number, since it is larger than the sum of its proper divisors (349442).

385390 is a wasteful number, since it uses less digits than its factorization.

385390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 385390 is about 620.7978737077. The cubic root of 385390 is about 72.7724194118.

The spelling of 385390 in words is "three hundred eighty-five thousand, three hundred ninety".