20023004 has 12 divisors (see below), whose sum is σ = 35128800. Its totient is φ = 9986208.

The previous prime is 20023001. The next prime is 20023009. The reversal of 20023004 is 40032002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023001) 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, 4484 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (2927400).

Almost surely, 2^20023004 is an apocalyptic number.

It is an amenable number.

20023004 is a deficient number, since it is larger than the sum of its proper divisors (15105796).

20023004 is a wasteful number, since it uses less digits than its factorization.

20023004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652 (or 12650 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20023004 is about 4474.7071412552. The cubic root of 20023004 is about 271.5457925557.

Adding to 20023004 its reverse (40032002), we get a palindrome (60055006).

The spelling of 20023004 in words is "twenty million, twenty-three thousand, four".