20469908 has 12 divisors (see below), whose sum is σ = 37380000. Its totient is φ = 9789912.

The previous prime is 20469893. The next prime is 20469913. The reversal of 20469908 is 80996402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111158 + ... + 111341.

It is an arithmetic number, because the mean of its divisors is an integer number (3115000).

Almost surely, 2^20469908 is an apocalyptic number.

It is an amenable number.

20469908 is a deficient number, since it is larger than the sum of its proper divisors (16910092).

20469908 is a wasteful number, since it uses less digits than its factorization.

20469908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222526 (or 222524 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 20469908 is about 4524.3682431915. The cubic root of 20469908 is about 273.5512037791.

The spelling of 20469908 in words is "twenty million, four hundred sixty-nine thousand, nine hundred eight".