20473192 has 8 divisors (see below), whose sum is σ = 38387250. Its totient is φ = 10236592.

The previous prime is 20473181. The next prime is 20473213. The reversal of 20473192 is 29137402.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 6380676 = 3754^2 + 2526^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20473192.

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 as a sum of consecutive naturals, namely, 1279567 + ... + 1279582.

Almost surely, 2^20473192 is an apocalyptic number.

It is an amenable number.

20473192 is a deficient number, since it is larger than the sum of its proper divisors (17914058).

20473192 is a wasteful number, since it uses less digits than its factorization.

20473192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559155 (or 2559151 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20473192 is about 4524.7311522344. The cubic root of 20473192 is about 273.5658316598.

The spelling of 20473192 in words is "twenty million, four hundred seventy-three thousand, one hundred ninety-two".