20043772 has 12 divisors (see below), whose sum is σ = 40087600. Its totient is φ = 8590176.

The previous prime is 20043769. The next prime is 20043773. The reversal of 20043772 is 27734002.

20043772 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357897 + ... + 357952.

Almost surely, 2^20043772 is an apocalyptic number.

It is an amenable number.

20043772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20043772 is a wasteful number, since it uses less digits than its factorization.

20043772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715860 (or 715858 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 20043772 is about 4477.0271386267. The cubic root of 20043772 is about 271.6396431816.

Adding to 20043772 its reverse (27734002), we get a palindrome (47777774).

It can be divided in two parts, 2004 and 3772, that added together give a square (5776 = 76²).

The spelling of 20043772 in words is "twenty million, forty-three thousand, seven hundred seventy-two".