20316472 has 64 divisors (see below), whose sum is σ = 45360000. Its totient is φ = 8426880.

The previous prime is 20316469. The next prime is 20316493. The reversal of 20316472 is 27461302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48279 + ... + 48697.

It is an arithmetic number, because the mean of its divisors is an integer number (708750).

Almost surely, 2^20316472 is an apocalyptic number.

20316472 is a gapful number since it is divisible by the number (22) 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 20316472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22680000).

20316472 is an abundant number, since it is smaller than the sum of its proper divisors (25043528).

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

20316472 is a wasteful number, since it uses less digits than its factorization.

20316472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20316472 is about 4507.3797266261. The cubic root of 20316472 is about 272.8660042730.

Adding to 20316472 its reverse (27461302), we get a palindrome (47777774).

The spelling of 20316472 in words is "twenty million, three hundred sixteen thousand, four hundred seventy-two".