20340324 has 36 divisors (see below), whose sum is σ = 51580620. Its totient is φ = 6758400.

The previous prime is 20340323. The next prime is 20340373. The reversal of 20340324 is 42304302.

20340324 is a `hidden beast` number, since 2 + 0 + 340 + 324 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10304100 + 10036224 = 3210^2 + 3168^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20340297 and 20340306.

It is not an unprimeable number, because it can be changed into a prime (20340323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13732 + ... + 15140.

It is an arithmetic number, because the mean of its divisors is an integer number (1432795).

Almost surely, 2^20340324 is an apocalyptic number.

It is an amenable number.

20340324 is an abundant number, since it is smaller than the sum of its proper divisors (31240296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20340324 is a wasteful number, since it uses less digits than its factorization.

20340324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20340324 is about 4510.0248336345. The cubic root of 20340324 is about 272.9727461422.

Adding to 20340324 its reverse (42304302), we get a palindrome (62644626).

The spelling of 20340324 in words is "twenty million, three hundred forty thousand, three hundred twenty-four".