20256608 has 24 divisors (see below), whose sum is σ = 40093200. Its totient is φ = 10074240.

The previous prime is 20256589. The next prime is 20256619. The reversal of 20256608 is 80665202.

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, 4778 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (1670550).

Almost surely, 2^20256608 is an apocalyptic number.

It is an amenable number.

20256608 is a deficient number, since it is larger than the sum of its proper divisors (19836592).

20256608 is a wasteful number, since it uses less digits than its factorization.

20256608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20256608 is about 4500.7341623340. The cubic root of 20256608 is about 272.5977339298.

The spelling of 20256608 in words is "twenty million, two hundred fifty-six thousand, six hundred eight".