20847050 has 72 divisors (see below), whose sum is σ = 46139904. Its totient is φ = 6985440.

The previous prime is 20847017. The next prime is 20847053. The reversal of 20847050 is 5074802.

It is not an unprimeable number, because it can be changed into a prime (20847053) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 164087 + ... + 164213.

It is an arithmetic number, because the mean of its divisors is an integer number (640832).

Almost surely, 2^20847050 is an apocalyptic number.

20847050 is an abundant number, since it is smaller than the sum of its proper divisors (25292854).

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

20847050 is a wasteful number, since it uses less digits than its factorization.

20847050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20847050 is about 4565.8569841816. The cubic root of 20847050 is about 275.2209794067.

The spelling of 20847050 in words is "twenty million, eight hundred forty-seven thousand, fifty".