320098405 has 32 divisors (see below), whose sum is σ = 435207168. Its totient is φ = 223910400.

The previous prime is 320098403. The next prime is 320098409. The reversal of 320098405 is 504890023.

It is not a de Polignac number, because 320098405 - 2¹ = 320098403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320098403) 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 31 ways as a sum of consecutive naturals, for example, 335409 + ... + 336361.

It is an arithmetic number, because the mean of its divisors is an integer number (13600224).

Almost surely, 2^320098405 is an apocalyptic number.

It is an amenable number.

320098405 is a deficient number, since it is larger than the sum of its proper divisors (115108763).

320098405 is a wasteful number, since it uses less digits than its factorization.

320098405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 320098405 is about 17891.2941119417. The cubic root of 320098405 is about 684.0604840613.

The spelling of 320098405 in words is "three hundred twenty million, ninety-eight thousand, four hundred five".