326011640 has 16 divisors (see below), whose sum is σ = 733526280. Its totient is φ = 130404640.

The previous prime is 326011627. The next prime is 326011643. The reversal of 326011640 is 46110623.

It is a happy number.

326011640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326011643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075106 + ... + 4075185.

Almost surely, 2^326011640 is an apocalyptic number.

It is an amenable number.

326011640 is an abundant number, since it is smaller than the sum of its proper divisors (407514640).

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

326011640 is a wasteful number, since it uses less digits than its factorization.

326011640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150302 (or 8150298 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 326011640 is about 18055.7924223779. The cubic root of 326011640 is about 688.2470662596.

The spelling of 326011640 in words is "three hundred twenty-six million, eleven thousand, six hundred forty".