20238244 has 24 divisors (see below), whose sum is σ = 38578680. Its totient is φ = 9233664.

The previous prime is 20238233. The next prime is 20238271. The reversal of 20238244 is 44283202.

It can be written as a sum of positive squares in 4 ways, for example, as 96100 + 20142144 = 310^2 + 4488^2 .

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 7 ways as a sum of consecutive naturals, for example, 2442 + ... + 6814.

It is an arithmetic number, because the mean of its divisors is an integer number (1607445).

Almost surely, 2^20238244 is an apocalyptic number.

It is an amenable number.

20238244 is a deficient number, since it is larger than the sum of its proper divisors (18340436).

20238244 is a wasteful number, since it uses less digits than its factorization.

20238244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4477 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 20238244 is about 4498.6935881431. The cubic root of 20238244 is about 272.5153328634.

The spelling of 20238244 in words is "twenty million, two hundred thirty-eight thousand, two hundred forty-four".