20043012 has 24 divisors (see below), whose sum is σ = 51018912. Its totient is φ = 6073600.

The previous prime is 20043007. The next prime is 20043053. The reversal of 20043012 is 21034002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75789 + ... + 76052.

It is an arithmetic number, because the mean of its divisors is an integer number (2125788).

Almost surely, 2^20043012 is an apocalyptic number.

20043012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20043012 is an abundant number, since it is smaller than the sum of its proper divisors (30975900).

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

20043012 is a wasteful number, since it uses less digits than its factorization.

20043012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151859 (or 151857 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20043012 is about 4476.9422600699. The cubic root of 20043012 is about 271.6362098835.

Adding to 20043012 its reverse (21034002), we get a palindrome (41077014).

The spelling of 20043012 in words is "twenty million, forty-three thousand, twelve".