20007043 has 12 divisors (see below), whose sum is σ = 23388240. Its totient is φ = 17064432.

The previous prime is 20007041. The next prime is 20007049. The reversal of 20007043 is 34070002.

It is not a de Polignac number, because 20007043 - 2¹ = 20007041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20007041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10330 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (1949020).

Almost surely, 2^20007043 is an apocalyptic number.

20007043 is a deficient number, since it is larger than the sum of its proper divisors (3381197).

20007043 is a wasteful number, since it uses less digits than its factorization.

20007043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 20007043 is about 4472.9233170266. The cubic root of 20007043 is about 271.4736206589.

Adding to 20007043 its reverse (34070002), we get a palindrome (54077045).

The spelling of 20007043 in words is "twenty million, seven thousand, forty-three".