20011376 has 80 divisors (see below), whose sum is σ = 49758720. Its totient is φ = 7568640.

The previous prime is 20011373. The next prime is 20011423. The reversal of 20011376 is 67311002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45365 + ... + 45803.

It is an arithmetic number, because the mean of its divisors is an integer number (621984).

Almost surely, 2^20011376 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 20011376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24879360).

20011376 is an abundant number, since it is smaller than the sum of its proper divisors (29747344).

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

20011376 is a wasteful number, since it uses less digits than its factorization.

20011376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20011376 is about 4473.4076496559. The cubic root of 20011376 is about 271.4932172628.

Adding to 20011376 its reverse (67311002), we get a palindrome (87322378).

The spelling of 20011376 in words is "twenty million, eleven thousand, three hundred seventy-six".