326640524 has 24 divisors (see below), whose sum is σ = 661156608. Its totient is φ = 138301200.

The previous prime is 326640511. The next prime is 326640529. The reversal of 326640524 is 425046623.

It is not an unprimeable number, because it can be changed into a prime (326640529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67952 + ... + 72599.

It is an arithmetic number, because the mean of its divisors is an integer number (27548192).

Almost surely, 2^326640524 is an apocalyptic number.

It is an amenable number.

326640524 is an abundant number, since it is smaller than the sum of its proper divisors (334516084).

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

326640524 is a wasteful number, since it uses less digits than its factorization.

326640524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140645 (or 140643 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 326640524 is about 18073.1990527411. The cubic root of 326640524 is about 688.6893301764.

The spelling of 326640524 in words is "three hundred twenty-six million, six hundred forty thousand, five hundred twenty-four".