20133344 has 48 divisors (see below), whose sum is σ = 49424256. Its totient is φ = 7843200.

The previous prime is 20133341. The next prime is 20133397. The reversal of 20133344 is 44333102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (1029672).

Almost surely, 2^20133344 is an apocalyptic number.

It is an amenable number.

20133344 is an abundant number, since it is smaller than the sum of its proper divisors (29290912).

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

20133344 is a wasteful number, since it uses less digits than its factorization.

20133344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199 (or 8191 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20133344 is about 4487.0195007377. The cubic root of 20133344 is about 272.0436781068.

Adding to 20133344 its reverse (44333102), we get a palindrome (64466446).

The spelling of 20133344 in words is "twenty million, one hundred thirty-three thousand, three hundred forty-four".