20106736 has 20 divisors (see below), whose sum is σ = 41953912. Its totient is φ = 9279936.

The previous prime is 20106727. The next prime is 20106743. The reversal of 20106736 is 63760102.

It is a self number, because there is not a number n which added to its sum of digits gives 20106736.

It is a congruent number.

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, 48126 + ... + 48541.

Almost surely, 2^20106736 is an apocalyptic number.

20106736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20106736 is an abundant number, since it is smaller than the sum of its proper divisors (21847176).

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

20106736 is a wasteful number, since it uses less digits than its factorization.

20106736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96688 (or 96682 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20106736 is about 4484.0535233202. The cubic root of 20106736 is about 271.9237819896.

Adding to 20106736 its reverse (63760102), we get a palindrome (83866838).

The spelling of 20106736 in words is "twenty million, one hundred six thousand, seven hundred thirty-six".