20011344 has 40 divisors (see below), whose sum is σ = 52413312. Its totient is φ = 6577920.

The previous prime is 20011319. The next prime is 20011349. The reversal of 20011344 is 44311002.

It is a super-3 number, since 3×20011344³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011349) 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, 649 + ... + 6359.

Almost surely, 2^20011344 is an apocalyptic number.

20011344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20011344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26206656).

20011344 is an abundant number, since it is smaller than the sum of its proper divisors (32401968).

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

20011344 is a wasteful number, since it uses less digits than its factorization.

20011344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795 (or 5789 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20011344 is about 4473.4040729628. The cubic root of 20011344 is about 271.4930725486.

Adding to 20011344 its reverse (44311002), we get a palindrome (64322346).

The spelling of 20011344 in words is "twenty million, eleven thousand, three hundred forty-four".