321434346 has 16 divisors (see below), whose sum is σ = 646586784. Its totient is φ = 106525104.

The previous prime is 321434341. The next prime is 321434353. The reversal of 321434346 is 643434123.

It is not an unprimeable number, because it can be changed into a prime (321434341) 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, 153796 + ... + 155871.

It is an arithmetic number, because the mean of its divisors is an integer number (40411674).

Almost surely, 2^321434346 is an apocalyptic number.

321434346 is an abundant number, since it is smaller than the sum of its proper divisors (325152438).

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

321434346 is a wasteful number, since it uses less digits than its factorization.

321434346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309845.

The product of its digits is 20736, while the sum is 30.

The square root of 321434346 is about 17928.5901843954. The cubic root of 321434346 is about 685.0108126945.

Adding to 321434346 its reverse (643434123), we get a palindrome (964868469).

The spelling of 321434346 in words is "three hundred twenty-one million, four hundred thirty-four thousand, three hundred forty-six".