326305534140 has 144 divisors (see below), whose sum is σ = 1004638995360. Its totient is φ = 85719429120.

The previous prime is 326305534127. The next prime is 326305534147. The reversal of 326305534140 is 41435503623.

326305534140 is a `hidden beast` number, since 3 + 2 + 6 + 305 + 5 + 341 + 4 + 0 = 666.

It is a super-2 number, since 2×326305534140² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 326305534095 and 326305534104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326305534147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3179956 + ... + 3280964.

It is an arithmetic number, because the mean of its divisors is an integer number (6976659690).

Almost surely, 2^326305534140 is an apocalyptic number.

326305534140 is a gapful number since it is divisible by the number (30) 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 326305534140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502319497680).

326305534140 is an abundant number, since it is smaller than the sum of its proper divisors (678333461220).

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

326305534140 is a wasteful number, since it uses less digits than its factorization.

326305534140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101292 (or 101287 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 326305534140 in words is "three hundred twenty-six billion, three hundred five million, five hundred thirty-four thousand, one hundred forty".