20324345 has 8 divisors (see below), whose sum is σ = 24553800. Its totient is φ = 16149760.

The previous prime is 20324327. The next prime is 20324363. The reversal of 20324345 is 54342302.

It is an interprime number because it is at equal distance from previous prime (20324327) and next prime (20324363).

It can be written as a sum of positive squares in 4 ways, for example, as 1201216 + 19123129 = 1096^2 + 4373^2 .

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

It is not a de Polignac number, because 20324345 - 2⁸ = 20324089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20324345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12896 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (3069225).

Almost surely, 2^20324345 is an apocalyptic number.

It is an amenable number.

20324345 is a deficient number, since it is larger than the sum of its proper divisors (4229455).

20324345 is a wasteful number, since it uses less digits than its factorization.

20324345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27435.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20324345 is about 4508.2529875773. The cubic root of 20324345 is about 272.9012465567.

Adding to 20324345 its reverse (54342302), we get a palindrome (74666647).

The spelling of 20324345 in words is "twenty million, three hundred twenty-four thousand, three hundred forty-five".