320063390 has 16 divisors (see below), whose sum is σ = 584007408. Its totient is φ = 126271296.

The previous prime is 320063389. The next prime is 320063411. The reversal of 320063390 is 93360023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218492 + ... + 219951.

It is an arithmetic number, because the mean of its divisors is an integer number (36500463).

Almost surely, 2^320063390 is an apocalyptic number.

320063390 is a deficient number, since it is larger than the sum of its proper divisors (263944018).

320063390 is a wasteful number, since it uses less digits than its factorization.

320063390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438523.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 320063390 is about 17890.3155366248. The cubic root of 320063390 is about 684.0355404284.

The spelling of 320063390 in words is "three hundred twenty million, sixty-three thousand, three hundred ninety".