326281648 has 40 divisors (see below), whose sum is σ = 788163840. Its totient is φ = 127122240.

The previous prime is 326281643. The next prime is 326281679. The reversal of 326281648 is 846182623.

It is a self number, because there is not a number n which added to its sum of digits gives 326281648.

It is not an unprimeable number, because it can be changed into a prime (326281643) 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, 131188 + ... + 133651.

It is an arithmetic number, because the mean of its divisors is an integer number (19704096).

Almost surely, 2^326281648 is an apocalyptic number.

It is an amenable number.

326281648 is an abundant number, since it is smaller than the sum of its proper divisors (461882192).

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

326281648 is a wasteful number, since it uses less digits than its factorization.

326281648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264865 (or 264859 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 326281648 is about 18063.2679213923. The cubic root of 326281648 is about 688.4370195329.

The spelling of 326281648 in words is "three hundred twenty-six million, two hundred eighty-one thousand, six hundred forty-eight".