320040023 has 8 divisors (see below), whose sum is σ = 329076000. Its totient is φ = 311115168.

The previous prime is 320039999. The next prime is 320040029.

320040023 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320040023 - 2⁸ = 320039767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320040029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21923 + ... + 33476.

It is an arithmetic number, because the mean of its divisors is an integer number (41134500).

Almost surely, 2^320040023 is an apocalyptic number.

320040023 is a deficient number, since it is larger than the sum of its proper divisors (9035977).

320040023 is a wasteful number, since it uses less digits than its factorization.

320040023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55561.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 320040023 is about 17889.6624618800. The cubic root of 320040023 is about 684.0188934683.

The spelling of 320040023 in words is "three hundred twenty million, forty thousand, twenty-three".