320645094 has 64 divisors (see below), whose sum is σ = 801792000. Its totient is φ = 83049120.

The previous prime is 320645089. The next prime is 320645099. The reversal of 320645094 is 490546023.

It is an interprime number because it is at equal distance from previous prime (320645089) and next prime (320645099).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320645099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213157 + ... + 214655.

It is an arithmetic number, because the mean of its divisors is an integer number (12528000).

Almost surely, 2^320645094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320645094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400896000).

320645094 is an abundant number, since it is smaller than the sum of its proper divisors (481146906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320645094 is a wasteful number, since it uses less digits than its factorization.

320645094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 320645094 is about 17906.5656673746. The cubic root of 320645094 is about 684.4496931716.

The spelling of 320645094 in words is "three hundred twenty million, six hundred forty-five thousand, ninety-four".