20148308 has 12 divisors (see below), whose sum is σ = 35391552. Its totient is φ = 10036440.

The previous prime is 20148269. The next prime is 20148329. The reversal of 20148308 is 80384102.

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, 8210 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (2949296).

Almost surely, 2^20148308 is an apocalyptic number.

It is an amenable number.

20148308 is a deficient number, since it is larger than the sum of its proper divisors (15243244).

20148308 is a wasteful number, since it uses less digits than its factorization.

20148308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862 (or 18860 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20148308 is about 4488.6866676123. The cubic root of 20148308 is about 272.1110597511. Note that the first 3 decimals are identical.

The spelling of 20148308 in words is "twenty million, one hundred forty-eight thousand, three hundred eight".