20047244 has 12 divisors (see below), whose sum is σ = 40094544. Its totient is φ = 8591664.

The previous prime is 20047241. The next prime is 20047253. The reversal of 20047244 is 44274002.

20047244 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20047241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357959 + ... + 358014.

It is an arithmetic number, because the mean of its divisors is an integer number (3341212).

Almost surely, 2^20047244 is an apocalyptic number.

It is an amenable number.

20047244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20047244 is a wasteful number, since it uses less digits than its factorization.

20047244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715984 (or 715982 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 20047244 is about 4477.4148791462. The cubic root of 20047244 is about 271.6553268296.

The spelling of 20047244 in words is "twenty million, forty-seven thousand, two hundred forty-four".