326040043 has 4 divisors (see below), whose sum is σ = 372617200. Its totient is φ = 279462888.

The previous prime is 326040017. The next prime is 326040053. The reversal of 326040043 is 340040623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340040623 = 13 ⋅26156971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326040043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326039996 and 326040023.

It is not an unprimeable number, because it can be changed into a prime (326040053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23288568 + ... + 23288581.

It is an arithmetic number, because the mean of its divisors is an integer number (93154300).

Almost surely, 2^326040043 is an apocalyptic number.

326040043 is a deficient number, since it is larger than the sum of its proper divisors (46577157).

326040043 is an equidigital number, since it uses as much as digits as its factorization.

326040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46577156.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 326040043 is about 18056.5789395444. The cubic root of 326040043 is about 688.2670529834.

Adding to 326040043 its reverse (340040623), we get a palindrome (666080666).

The spelling of 326040043 in words is "three hundred twenty-six million, forty thousand, forty-three".