326394628 has 48 divisors (see below), whose sum is σ = 693149184. Its totient is φ = 131281920.

The previous prime is 326394557. The next prime is 326394641. The reversal of 326394628 is 826493623.

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, 219648 + ... + 221128.

It is an arithmetic number, because the mean of its divisors is an integer number (14440608).

Almost surely, 2^326394628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326394628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346574592).

326394628 is an abundant number, since it is smaller than the sum of its proper divisors (366754556).

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

326394628 is a wasteful number, since it uses less digits than its factorization.

326394628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1970 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 326394628 is about 18066.3949918073. The cubic root of 326394628 is about 688.5164709712.

The spelling of 326394628 in words is "three hundred twenty-six million, three hundred ninety-four thousand, six hundred twenty-eight".