20354024 has 8 divisors (see below), whose sum is σ = 38163810. Its totient is φ = 10177008.

The previous prime is 20354023. The next prime is 20354041. The reversal of 20354024 is 42045302.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 13924 = 4510^2 + 118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20353987 and 20354005.

It is not an unprimeable number, because it can be changed into a prime (20354023) 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 as a sum of consecutive naturals, namely, 1272119 + ... + 1272134.

Almost surely, 2^20354024 is an apocalyptic number.

It is an amenable number.

20354024 is a deficient number, since it is larger than the sum of its proper divisors (17809786).

20354024 is a wasteful number, since it uses less digits than its factorization.

20354024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544259 (or 2544255 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20354024 is about 4511.5434166148. The cubic root of 20354024 is about 273.0340183113.

Adding to 20354024 its reverse (42045302), we get a palindrome (62399326).

The spelling of 20354024 in words is "twenty million, three hundred fifty-four thousand, twenty-four".