320466421 has 8 divisors (see below), whose sum is σ = 349776864. Its totient is φ = 291185520.

The previous prime is 320466413. The next prime is 320466449. The reversal of 320466421 is 124664023.

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 320466421 - 2³ = 320466413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320466421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320466451) 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, 19611 + ... + 32023.

It is an arithmetic number, because the mean of its divisors is an integer number (43722108).

Almost surely, 2^320466421 is an apocalyptic number.

It is an amenable number.

320466421 is a deficient number, since it is larger than the sum of its proper divisors (29310443).

320466421 is a wasteful number, since it uses less digits than its factorization.

320466421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14771.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 320466421 is about 17901.5759362130. The cubic root of 320466421 is about 684.3225376297.

The spelling of 320466421 in words is "three hundred twenty million, four hundred sixty-six thousand, four hundred twenty-one".