20115482 has 8 divisors (see below), whose sum is σ = 30668052. Its totient is φ = 9892800.

The previous prime is 20115481. The next prime is 20115493. The reversal of 20115482 is 28451102.

It can be written as a sum of positive squares in 2 ways, for example, as 13920361 + 6195121 = 3731^2 + 2489^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20115481) 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 3 ways as a sum of consecutive naturals, for example, 82319 + ... + 82562.

Almost surely, 2^20115482 is an apocalyptic number.

20115482 is a deficient number, since it is larger than the sum of its proper divisors (10552570).

20115482 is a wasteful number, since it uses less digits than its factorization.

20115482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164944.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20115482 is about 4485.0286509676. The cubic root of 20115482 is about 271.9632032835.

Adding to 20115482 its reverse (28451102), we get a palindrome (48566584).

The spelling of 20115482 in words is "twenty million, one hundred fifteen thousand, four hundred eighty-two".