20002044 has 24 divisors (see below), whose sum is σ = 46811520. Its totient is φ = 6647344.

The previous prime is 20002027. The next prime is 20002061. The reversal of 20002044 is 44020002.

It is an interprime number because it is at equal distance from previous prime (20002027) and next prime (20002061).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1987 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (1950480).

Almost surely, 2^20002044 is an apocalyptic number.

It is an amenable number.

20002044 is an abundant number, since it is smaller than the sum of its proper divisors (26809476).

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

20002044 is a wasteful number, since it uses less digits than its factorization.

20002044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009 (or 5007 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 20002044 is about 4472.3644753083. The cubic root of 20002044 is about 271.4510084605.

Adding to 20002044 its reverse (44020002), we get a palindrome (64022046).

The spelling of 20002044 in words is "twenty million, two thousand, forty-four".