324878401 has 4 divisors (see below), whose sum is σ = 325903572. Its totient is φ = 323853232.

The previous prime is 324878371. The next prime is 324878443. The reversal of 324878401 is 104878423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123210000 + 201668401 = 11100^2 + 14201^2 .

It is a cyclic number.

It is not a de Polignac number, because 324878401 - 2⁵ = 324878369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324878461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 512110 + ... + 512743.

It is an arithmetic number, because the mean of its divisors is an integer number (81475893).

Almost surely, 2^324878401 is an apocalyptic number.

It is an amenable number.

324878401 is a deficient number, since it is larger than the sum of its proper divisors (1025171).

324878401 is a wasteful number, since it uses less digits than its factorization.

324878401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025170.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 324878401 is about 18024.3835123424. The cubic root of 324878401 is about 687.4486756617.

The spelling of 324878401 in words is "three hundred twenty-four million, eight hundred seventy-eight thousand, four hundred one".