20444338 has 4 divisors (see below), whose sum is σ = 30666510. Its totient is φ = 10222168.

The previous prime is 20444329. The next prime is 20444341. The reversal of 20444338 is 83344402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18948609 + 1495729 = 4353^2 + 1223^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111083 + ... + 5111086.

Almost surely, 2^20444338 is an apocalyptic number.

20444338 is a deficient number, since it is larger than the sum of its proper divisors (10222172).

20444338 is a wasteful number, since it uses less digits than its factorization.

20444338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222171.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 20444338 is about 4521.5415512854. The cubic root of 20444338 is about 273.4372540928.

The spelling of 20444338 in words is "twenty million, four hundred forty-four thousand, three hundred thirty-eight".