20847150 has 36 divisors (see below), whose sum is σ = 56010552. Its totient is φ = 5559120.

The previous prime is 20847149. The next prime is 20847163. The reversal of 20847150 is 5174802.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 22714 + ... + 23613.

Almost surely, 2^20847150 is an apocalyptic number.

20847150 is an abundant number, since it is smaller than the sum of its proper divisors (35163402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20847150 is a wasteful number, since it uses less digits than its factorization.

20847150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46345 (or 46337 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 20847150 is about 4565.8679350152. The cubic root of 20847150 is about 275.2214194698.

The spelling of 20847150 in words is "twenty million, eight hundred forty-seven thousand, one hundred fifty".