20047162 has 8 divisors (see below), whose sum is σ = 30563892. Its totient is φ = 9859200.

The previous prime is 20047151. The next prime is 20047177. The reversal of 20047162 is 26174002.

It can be written as a sum of positive squares in 2 ways, for example, as 13549761 + 6497401 = 3681^2 + 2549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 82039 + ... + 82282.

Almost surely, 2^20047162 is an apocalyptic number.

20047162 is a deficient number, since it is larger than the sum of its proper divisors (10516730).

20047162 is a wasteful number, since it uses less digits than its factorization.

20047162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164384.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20047162 is about 4477.4057220672. The cubic root of 20047162 is about 271.6549564417.

The spelling of 20047162 in words is "twenty million, forty-seven thousand, one hundred sixty-two".