20520382 has 8 divisors (see below), whose sum is σ = 30854952. Its totient is φ = 10235400.

The previous prime is 20520337. The next prime is 20520389. The reversal of 20520382 is 28302502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20520389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11344 + ... + 13027.

It is an arithmetic number, because the mean of its divisors is an integer number (3856869).

Almost surely, 2^20520382 is an apocalyptic number.

20520382 is a deficient number, since it is larger than the sum of its proper divisors (10334570).

20520382 is a wasteful number, since it uses less digits than its factorization.

20520382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24794.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20520382 is about 4529.9428252463. The cubic root of 20520382 is about 273.7758569712.

Adding to 20520382 its reverse (28302502), we get a palindrome (48822884).

It can be divided in two parts, 20520 and 382, that added together give a palindrome (20902).

The spelling of 20520382 in words is "twenty million, five hundred twenty thousand, three hundred eighty-two".