20049608 has 8 divisors (see below), whose sum is σ = 37593030. Its totient is φ = 10024800.

The previous prime is 20049607. The next prime is 20049649. The reversal of 20049608 is 80694002.

It can be written as a sum of positive squares in only one way, i.e., 11276164 + 8773444 = 3358^2 + 2962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20049607) by changing a digit.

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 as a sum of consecutive naturals, namely, 1253093 + ... + 1253108.

Almost surely, 2^20049608 is an apocalyptic number.

It is an amenable number.

20049608 is a deficient number, since it is larger than the sum of its proper divisors (17543422).

20049608 is a wasteful number, since it uses less digits than its factorization.

20049608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506207 (or 2506203 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20049608 is about 4477.6788629825. The cubic root of 20049608 is about 271.6660044062. Note that the first 3 decimals are identical.

The spelling of 20049608 in words is "twenty million, forty-nine thousand, six hundred eight".