20043064 has 8 divisors (see below), whose sum is σ = 37580760. Its totient is φ = 10021528.

The previous prime is 20043061. The next prime is 20043071. The reversal of 20043064 is 46034002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252684 + ... + 1252699.

It is an arithmetic number, because the mean of its divisors is an integer number (4697595).

Almost surely, 2^20043064 is an apocalyptic number.

It is an amenable number.

20043064 is a deficient number, since it is larger than the sum of its proper divisors (17537696).

20043064 is a wasteful number, since it uses less digits than its factorization.

20043064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505389 (or 2505385 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20043064 is about 4476.9480676014. The cubic root of 20043064 is about 271.6364447961.

Adding to 20043064 its reverse (46034002), we get a palindrome (66077066).

It can be divided in two parts, 200 and 43064, that added together give a square (43264 = 208²).

The spelling of 20043064 in words is "twenty million, forty-three thousand, sixty-four".