20945096 has 16 divisors (see below), whose sum is σ = 40230540. Its totient is φ = 10216960.

The previous prime is 20945083. The next prime is 20945101. The reversal of 20945096 is 69054902.

It can be written as a sum of positive squares in 2 ways, for example, as 20160100 + 784996 = 4490^2 + 886^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31601 + ... + 32256.

Almost surely, 2^20945096 is an apocalyptic number.

It is an amenable number.

20945096 is a deficient number, since it is larger than the sum of its proper divisors (19285444).

20945096 is a wasteful number, since it uses less digits than its factorization.

20945096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63904 (or 63900 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 20945096 is about 4576.5812567898. The cubic root of 20945096 is about 275.6517697410.

Adding to 20945096 its reverse (69054902), we get a palindrome (89999998).

The spelling of 20945096 in words is "twenty million, nine hundred forty-five thousand, ninety-six".