326305560 has 64 divisors (see below), whose sum is σ = 1118764800. Its totient is φ = 74583936.

The previous prime is 326305559. The next prime is 326305591. The reversal of 326305560 is 65503623.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 193390 + ... + 195069.

It is an arithmetic number, because the mean of its divisors is an integer number (17480700).

Almost surely, 2^326305560 is an apocalyptic number.

326305560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326305560 is an abundant number, since it is smaller than the sum of its proper divisors (792459240).

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

326305560 is a wasteful number, since it uses less digits than its factorization.

326305560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388480 (or 388476 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 326305560 is about 18063.9298050009. The cubic root of 326305560 is about 688.4538368071.

The spelling of 326305560 in words is "three hundred twenty-six million, three hundred five thousand, five hundred sixty".