326564730 has 64 divisors (see below), whose sum is σ = 922078080. Its totient is φ = 81960192.

The previous prime is 326564699. The next prime is 326564731. The reversal of 326564730 is 37465623.

326564730 is a `hidden beast` number, since 3 + 2 + 6 + 5 + 647 + 3 + 0 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326564731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30984 + ... + 40163.

It is an arithmetic number, because the mean of its divisors is an integer number (14407470).

Almost surely, 2^326564730 is an apocalyptic number.

326564730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

326564730 is an abundant number, since it is smaller than the sum of its proper divisors (595513350).

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

326564730 is a wasteful number, since it uses less digits than its factorization.

326564730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71180 (or 71174 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 326564730 is about 18071.1020693260. The cubic root of 326564730 is about 688.6360579977.

The spelling of 326564730 in words is "three hundred twenty-six million, five hundred sixty-four thousand, seven hundred thirty".