326321240 has 64 divisors (see below), whose sum is σ = 875612160. Its totient is φ = 107015040.

The previous prime is 326321231. The next prime is 326321251. The reversal of 326321240 is 42123623.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 18896 + ... + 31775.

It is an arithmetic number, because the mean of its divisors is an integer number (13681440).

Almost surely, 2^326321240 is an apocalyptic number.

It is an amenable number.

326321240 is an abundant number, since it is smaller than the sum of its proper divisors (549290920).

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

326321240 is a wasteful number, since it uses less digits than its factorization.

326321240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50712 (or 50708 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 326321240 is about 18064.3638138740. The cubic root of 326321240 is about 688.4648640819.

Adding to 326321240 its reverse (42123623), we get a palindrome (368444863).

The spelling of 326321240 in words is "three hundred twenty-six million, three hundred twenty-one thousand, two hundred forty".