20172482 has 8 divisors (see below), whose sum is σ = 33009552. Its totient is φ = 9169300.

The previous prime is 20172469. The next prime is 20172491. The reversal of 20172482 is 28427102.

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

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 3 ways as a sum of consecutive naturals, for example, 458444 + ... + 458487.

It is an arithmetic number, because the mean of its divisors is an integer number (4126194).

Almost surely, 2^20172482 is an apocalyptic number.

20172482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20172482 is a deficient number, since it is larger than the sum of its proper divisors (12837070).

20172482 is a wasteful number, since it uses less digits than its factorization.

20172482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916944.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 20172482 is about 4491.3786302203. The cubic root of 20172482 is about 272.2198428101.

Adding to 20172482 its reverse (28427102), we get a palindrome (48599584).

The spelling of 20172482 in words is "twenty million, one hundred seventy-two thousand, four hundred eighty-two".