20534382 has 48 divisors (see below), whose sum is σ = 48954672. Its totient is φ = 6168960.

The previous prime is 20534359. The next prime is 20534387. The reversal of 20534382 is 28343502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534387) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 26748 + ... + 27504.

It is an arithmetic number, because the mean of its divisors is an integer number (1019889).

Almost surely, 2^20534382 is an apocalyptic number.

20534382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20534382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24477336).

20534382 is an abundant number, since it is smaller than the sum of its proper divisors (28420290).

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

20534382 is a wasteful number, since it uses less digits than its factorization.

20534382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 20534382 is about 4531.4878351376. The cubic root of 20534382 is about 273.8381038740.

Adding to 20534382 its reverse (28343502), we get a palindrome (48877884).

The spelling of 20534382 in words is "twenty million, five hundred thirty-four thousand, three hundred eighty-two".