320641134 has 32 divisors (see below), whose sum is σ = 700406784. Its totient is φ = 97049280.

The previous prime is 320641133. The next prime is 320641147. The reversal of 320641134 is 431146023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320641133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65827 + ... + 70529.

It is an arithmetic number, because the mean of its divisors is an integer number (21887712).

Almost surely, 2^320641134 is an apocalyptic number.

320641134 is an abundant number, since it is smaller than the sum of its proper divisors (379765650).

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

320641134 is a wasteful number, since it uses less digits than its factorization.

320641134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 320641134 is about 17906.4550930663. The cubic root of 320641134 is about 684.4468754852.

Adding to 320641134 its reverse (431146023), we get a palindrome (751787157).

The spelling of 320641134 in words is "three hundred twenty million, six hundred forty-one thousand, one hundred thirty-four".