326621268 has 72 divisors (see below), whose sum is σ = 859073600. Its totient is φ = 107317008.

The previous prime is 326621257. The next prime is 326621279. The reversal of 326621268 is 862126623.

326621268 is a `hidden beast` number, since 3 + 2 + 6 + 621 + 26 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (326621257) and next prime (326621279).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 743793 + ... + 744231.

Almost surely, 2^326621268 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 326621268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429536800).

326621268 is an abundant number, since it is smaller than the sum of its proper divisors (532452332).

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

326621268 is a wasteful number, since it uses less digits than its factorization.

326621268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 527 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 326621268 is about 18072.6663223776. Note that the first 3 decimals coincide. The cubic root of 326621268 is about 688.6757967848.

It can be divided in two parts, 32662 and 1268, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 326621268 in words is "three hundred twenty-six million, six hundred twenty-one thousand, two hundred sixty-eight".