326812136 has 64 divisors (see below), whose sum is σ = 736560000. Its totient is φ = 132975360.

The previous prime is 326812117. The next prime is 326812139. The reversal of 326812136 is 631218623.

It is not an unprimeable number, because it can be changed into a prime (326812139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97415 + ... + 100713.

It is an arithmetic number, because the mean of its divisors is an integer number (11508750).

Almost surely, 2^326812136 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 326812136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368280000).

326812136 is an abundant number, since it is smaller than the sum of its proper divisors (409747864).

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

326812136 is a wasteful number, since it uses less digits than its factorization.

326812136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402 (or 3398 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 326812136 is about 18077.9461222784. The cubic root of 326812136 is about 688.8099180528.

The spelling of 326812136 in words is "three hundred twenty-six million, eight hundred twelve thousand, one hundred thirty-six".