20332356 has 96 divisors (see below), whose sum is σ = 55749120. Its totient is φ = 5749920.

The previous prime is 20332349. The next prime is 20332363. The reversal of 20332356 is 65323302.

It is an interprime number because it is at equal distance from previous prime (20332349) and next prime (20332363).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303435 + ... + 303501.

It is an arithmetic number, because the mean of its divisors is an integer number (580720).

Almost surely, 2^20332356 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 20332356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27874560).

20332356 is an abundant number, since it is smaller than the sum of its proper divisors (35416764).

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

20332356 is a wasteful number, since it uses less digits than its factorization.

20332356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 20332356 is about 4509.1413816823. The cubic root of 20332356 is about 272.9370972358.

Adding to 20332356 its reverse (65323302), we get a palindrome (85655658).

The spelling of 20332356 in words is "twenty million, three hundred thirty-two thousand, three hundred fifty-six".