326440136460 has 24 divisors (see below), whose sum is σ = 914032382256. Its totient is φ = 87050703040.

The previous prime is 326440136437. The next prime is 326440136461. The reversal of 326440136460 is 64631044623.

It is not an unprimeable number, because it can be changed into a prime (326440136461) 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, 2720334411 + ... + 2720334530.

It is an arithmetic number, because the mean of its divisors is an integer number (38084682594).

Almost surely, 2^326440136460 is an apocalyptic number.

326440136460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326440136460 is an abundant number, since it is smaller than the sum of its proper divisors (587592245796).

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

326440136460 is a wasteful number, since it uses less digits than its factorization.

326440136460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440668953 (or 5440668951 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 326440136460 in words is "three hundred twenty-six billion, four hundred forty million, one hundred thirty-six thousand, four hundred sixty".