326253906 has 80 divisors (see below), whose sum is σ = 802061568. Its totient is φ = 98301600.

The previous prime is 326253899. The next prime is 326253913. The reversal of 326253906 is 609352623.

326253906 is a `hidden beast` number, since 3 + 262 + 5 + 390 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (326253899) and next prime (326253913).

It is a super-2 number, since 2×326253906² = 212883222360513672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 396976 + ... + 397796.

Almost surely, 2^326253906 is an apocalyptic number.

It is a pronic number, being equal to 18062×18063.

It is a practical number, because each smaller number is the sum of distinct divisors of 326253906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401030784).

326253906 is an abundant number, since it is smaller than the sum of its proper divisors (475807662).

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

326253906 is a wasteful number, since it uses less digits than its factorization.

326253906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 326253906 is about 18062.4999930796. The cubic root of 326253906 is about 688.4175075956.

The spelling of 326253906 in words is "three hundred twenty-six million, two hundred fifty-three thousand, nine hundred six".