20541016 has 8 divisors (see below), whose sum is σ = 38514420. Its totient is φ = 10270504.

The previous prime is 20541013. The next prime is 20541023. The reversal of 20541016 is 61014502.

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 = 20540984 and 20541002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541013) 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, 1283806 + ... + 1283821.

Almost surely, 2^20541016 is an apocalyptic number.

It is an amenable number.

20541016 is a deficient number, since it is larger than the sum of its proper divisors (17973404).

20541016 is a wasteful number, since it uses less digits than its factorization.

20541016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567633 (or 2567629 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20541016 is about 4532.2197651923. The cubic root of 20541016 is about 273.8675901340.

Adding to 20541016 its reverse (61014502), we get a palindrome (81555518).

The spelling of 20541016 in words is "twenty million, five hundred forty-one thousand, sixteen".