324644053 has 4 divisors (see below), whose sum is σ = 343740780. Its totient is φ = 305547328.

The previous prime is 324644041. The next prime is 324644063. The reversal of 324644053 is 350446423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350446423 = 23 ⋅15236801.

It can be written as a sum of positive squares in 2 ways, for example, as 155201764 + 169442289 = 12458^2 + 13017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-324644053 is a prime.

It is a super-2 number, since 2×324644053² = 210787522296533618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324644063) 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, 9548338 + ... + 9548371.

It is an arithmetic number, because the mean of its divisors is an integer number (85935195).

Almost surely, 2^324644053 is an apocalyptic number.

It is an amenable number.

324644053 is a deficient number, since it is larger than the sum of its proper divisors (19096727).

324644053 is a wasteful number, since it uses less digits than its factorization.

324644053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19096726.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 324644053 is about 18017.8814792417. The cubic root of 324644053 is about 687.2833410074.

The spelling of 324644053 in words is "three hundred twenty-four million, six hundred forty-four thousand, fifty-three".