321434434090 has 128 divisors (see below), whose sum is σ = 737770291200. Its totient is φ = 99956001600.

The previous prime is 321434434081. The next prime is 321434434091. The reversal of 321434434090 is 90434434123.

It is not an unprimeable number, because it can be changed into a prime (321434434091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16704775 + ... + 16724005.

It is an arithmetic number, because the mean of its divisors is an integer number (5763830400).

Almost surely, 2^321434434090 is an apocalyptic number.

321434434090 is an abundant number, since it is smaller than the sum of its proper divisors (416335857110).

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

321434434090 is a wasteful number, since it uses less digits than its factorization.

321434434090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19713 (or 19699 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 321434434090 in words is "three hundred twenty-one billion, four hundred thirty-four million, four hundred thirty-four thousand, ninety".