320070 has 32 divisors (see below), whose sum is σ = 787968. Its totient is φ = 83168.

The previous prime is 320063. The next prime is 320081. The reversal of 320070 is 70023.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320070.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (24624).

2³²⁰⁰⁷⁰ is an apocalyptic number.

320070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393984).

320070 is an abundant number, since it is smaller than the sum of its proper divisors (467898).

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

320070 is a wasteful number, since it uses less digits than its factorization.

320070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 42, while the sum is 12.

The square root of 320070 is about 565.7472934093. The cubic root of 320070 is about 68.4040249333.

Adding to 320070 its reverse (70023), we get a palindrome (390093).

Subtracting from 320070 its reverse (70023), we obtain a cube (250047 = 63³).

The spelling of 320070 in words is "three hundred twenty thousand, seventy", and thus it is an iban number.