20748116 has 12 divisors (see below), whose sum is σ = 37888032. Its totient is φ = 9922968.

The previous prime is 20748097. The next prime is 20748121. The reversal of 20748116 is 61184702.

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, 112670 + ... + 112853.

It is an arithmetic number, because the mean of its divisors is an integer number (3157336).

Almost surely, 2^20748116 is an apocalyptic number.

It is an amenable number.

20748116 is a deficient number, since it is larger than the sum of its proper divisors (17139916).

20748116 is a wasteful number, since it uses less digits than its factorization.

20748116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225550 (or 225548 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 20748116 is about 4555.0099890121. The cubic root of 20748116 is about 274.7849161193.

The spelling of 20748116 in words is "twenty million, seven hundred forty-eight thousand, one hundred sixteen".