326305152 has 128 divisors (see below), whose sum is σ = 969408000. Its totient is φ = 108052992.

The previous prime is 326305127. The next prime is 326305181. The reversal of 326305152 is 251503623.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908749 + ... + 909107.

It is an arithmetic number, because the mean of its divisors is an integer number (7573500).

Almost surely, 2^326305152 is an apocalyptic number.

326305152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326305152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484704000).

326305152 is an abundant number, since it is smaller than the sum of its proper divisors (643102848).

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

326305152 is a wasteful number, since it uses less digits than its factorization.

326305152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 326305152 is about 18063.9185117737. The cubic root of 326305152 is about 688.4535498682.

Adding to 326305152 its reverse (251503623), we get a palindrome (577808775).

The spelling of 326305152 in words is "three hundred twenty-six million, three hundred five thousand, one hundred fifty-two".