20033244 has 180 divisors, whose sum is σ = 66689392. Its totient is φ = 5132160.

The previous prime is 20033231. The next prime is 20033257. The reversal of 20033244 is 44233002.

It is an interprime number because it is at equal distance from previous prime (20033231) and next prime (20033257).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 274392 + ... + 274464.

Almost surely, 2^20033244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20033244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33344696).

20033244 is an abundant number, since it is smaller than the sum of its proper divisors (46656148).

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

20033244 is a wasteful number, since it uses less digits than its factorization.

20033244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20033244 is about 4475.8512039611. The cubic root of 20033244 is about 271.5920752386.

Adding to 20033244 its reverse (44233002), we get a palindrome (64266246).

The spelling of 20033244 in words is "twenty million, thirty-three thousand, two hundred forty-four".