20032444 has 6 divisors (see below), whose sum is σ = 35056784. Its totient is φ = 10016220.

The previous prime is 20032423. The next prime is 20032457. The reversal of 20032444 is 44423002.

It is a super-2 number, since 2×20032444² = 802597625226272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2504052 + ... + 2504059.

Almost surely, 2^20032444 is an apocalyptic number.

It is an amenable number.

20032444 is a deficient number, since it is larger than the sum of its proper divisors (15024340).

20032444 is a wasteful number, since it uses less digits than its factorization.

20032444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008115 (or 5008113 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20032444 is about 4475.7618345931. The cubic root of 20032444 is about 271.5884599720.

Adding to 20032444 its reverse (44423002), we get a palindrome (64455446).

The spelling of 20032444 in words is "twenty million, thirty-two thousand, four hundred forty-four".