20445676 has 6 divisors (see below), whose sum is σ = 35779940. Its totient is φ = 10222836.

The previous prime is 20445637. The next prime is 20445697. The reversal of 20445676 is 67654402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555706 + ... + 2555713.

Almost surely, 2^20445676 is an apocalyptic number.

It is an amenable number.

20445676 is a deficient number, since it is larger than the sum of its proper divisors (15334264).

20445676 is a wasteful number, since it uses less digits than its factorization.

20445676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111423 (or 5111421 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 20445676 is about 4521.6895072528. The cubic root of 20445676 is about 273.4432190869.

The spelling of 20445676 in words is "twenty million, four hundred forty-five thousand, six hundred seventy-six".