20107936 has 12 divisors (see below), whose sum is σ = 39587562. Its totient is φ = 10053952.

The previous prime is 20107931. The next prime is 20107951. The reversal of 20107936 is 63970102.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 571536 = 4420^2 + 756^2 .

It is not an unprimeable number, because it can be changed into a prime (20107931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314155 + ... + 314218.

Almost surely, 2^20107936 is an apocalyptic number.

It is an amenable number.

20107936 is a deficient number, since it is larger than the sum of its proper divisors (19479626).

20107936 is an equidigital number, since it uses as much as digits as its factorization.

20107936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628383 (or 628375 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20107936 is about 4484.1873288256. The cubic root of 20107936 is about 271.9291914876.

The spelling of 20107936 in words is "twenty million, one hundred seven thousand, nine hundred thirty-six".