326723520 has 56 divisors (see below), whose sum is σ = 1037350224. Its totient is φ = 87126016.

The previous prime is 326723513. The next prime is 326723521. The reversal of 326723520 is 25327623.

326723520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×326723520³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326723521) 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, 169209 + ... + 171128.

Almost surely, 2^326723520 is an apocalyptic number.

326723520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326723520 is an abundant number, since it is smaller than the sum of its proper divisors (710626704).

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

326723520 is a wasteful number, since it uses less digits than its factorization.

326723520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340357 (or 340347 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 326723520 is about 18075.4950139685. The cubic root of 326723520 is about 688.7476548636.

The spelling of 326723520 in words is "three hundred twenty-six million, seven hundred twenty-three thousand, five hundred twenty".