20081376 has 108 divisors (see below), whose sum is σ = 66476592. Its totient is φ = 5733504.

The previous prime is 20081363. The next prime is 20081377. The reversal of 20081376 is 67318002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20081377) 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 17 ways as a sum of consecutive naturals, for example, 13401 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (615524).

Almost surely, 2^20081376 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 20081376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33238296).

20081376 is an abundant number, since it is smaller than the sum of its proper divisors (46395216).

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

20081376 is a wasteful number, since it uses less digits than its factorization.

20081376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20081376 is about 4481.2248325653. The cubic root of 20081376 is about 271.8094108923.

Adding to 20081376 its reverse (67318002), we get a palindrome (87399378).

The spelling of 20081376 in words is "twenty million, eighty-one thousand, three hundred seventy-six".