20043264 has 40 divisors (see below), whose sum is σ = 53400600. Its totient is φ = 6680576.

The previous prime is 20043259. The next prime is 20043269. The reversal of 20043264 is 46234002.

It is an interprime number because it is at equal distance from previous prime (20043259) and next prime (20043269).

It is a self number, because there is not a number n which added to its sum of digits gives 20043264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043269) 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, 4989 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (1335015).

Almost surely, 2^20043264 is an apocalyptic number.

20043264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20043264 is an abundant number, since it is smaller than the sum of its proper divisors (33357336).

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

20043264 is an equidigital number, since it uses as much as digits as its factorization.

20043264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13070 (or 13054 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20043264 is about 4476.9704041908. The cubic root of 20043264 is about 271.6373483025.

Adding to 20043264 its reverse (46234002), we get a palindrome (66277266).

The spelling of 20043264 in words is "twenty million, forty-three thousand, two hundred sixty-four".