326440145 has 8 divisors (see below), whose sum is σ = 400063104. Its totient is φ = 255595504.

The previous prime is 326440141. The next prime is 326440193. The reversal of 326440145 is 541044623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 326440145 - 2² = 326440141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326440141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694319 + ... + 694788.

It is an arithmetic number, because the mean of its divisors is an integer number (50007888).

Almost surely, 2^326440145 is an apocalyptic number.

It is an amenable number.

326440145 is a deficient number, since it is larger than the sum of its proper divisors (73622959).

326440145 is a wasteful number, since it uses less digits than its factorization.

326440145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389159.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 326440145 is about 18067.6546624071. The cubic root of 326440145 is about 688.5484749166.

Adding to 326440145 its reverse (541044623), we get a palindrome (867484768).

The spelling of 326440145 in words is "three hundred twenty-six million, four hundred forty thousand, one hundred forty-five".