20148008 has 8 divisors (see below), whose sum is σ = 37777530. Its totient is φ = 10074000.

The previous prime is 20147947. The next prime is 20148041. The reversal of 20148008 is 80084102.

It can be written as a sum of positive squares in only one way, i.e., 18852964 + 1295044 = 4342^2 + 1138^2 .

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

It is an unprimeable number.

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, 1259243 + ... + 1259258.

Almost surely, 2^20148008 is an apocalyptic number.

It is an amenable number.

20148008 is a deficient number, since it is larger than the sum of its proper divisors (17629522).

20148008 is a wasteful number, since it uses less digits than its factorization.

20148008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518507 (or 2518503 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 20148008 is about 4488.6532501408. The cubic root of 20148008 is about 272.1097092039.

The spelling of 20148008 in words is "twenty million, one hundred forty-eight thousand, eight".