20061444 has 24 divisors (see below), whose sum is σ = 50411200. Its totient is φ = 6172704.

The previous prime is 20061439. The next prime is 20061449. The reversal of 20061444 is 44416002.

It is an interprime number because it is at equal distance from previous prime (20061439) and next prime (20061449).

It is a self number, because there is not a number n which added to its sum of digits gives 20061444.

It is not an unprimeable number, because it can be changed into a prime (20061449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64144 + ... + 64455.

Almost surely, 2^20061444 is an apocalyptic number.

It is an amenable number.

20061444 is an abundant number, since it is smaller than the sum of its proper divisors (30349756).

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

20061444 is a wasteful number, since it uses less digits than its factorization.

20061444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128619 (or 128617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20061444 is about 4479.0003348962. Note that the first 3 decimals coincide. The cubic root of 20061444 is about 271.7194519400.

Adding to 20061444 its reverse (44416002), we get a palindrome (64477446).

The spelling of 20061444 in words is "twenty million, sixty-one thousand, four hundred forty-four".