20106448 has 20 divisors (see below), whose sum is σ = 39451840. Its totient is φ = 9925344.

The previous prime is 20106421. The next prime is 20106469. The reversal of 20106448 is 84460102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6690 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (1972592).

Almost surely, 2^20106448 is an apocalyptic number.

It is an amenable number.

20106448 is a deficient number, since it is larger than the sum of its proper divisors (19345392).

20106448 is a wasteful number, since it uses less digits than its factorization.

20106448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15994 (or 15988 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 20106448 is about 4484.0214094047. The cubic root of 20106448 is about 271.9224836780.

The spelling of 20106448 in words is "twenty million, one hundred six thousand, four hundred forty-eight".