20352872 has 16 divisors (see below), whose sum is σ = 38290560. Its totient is φ = 10142064.

The previous prime is 20352863. The next prime is 20352877. The reversal of 20352872 is 27825302.

It is not an unprimeable number, because it can be changed into a prime (20352877) 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 3 ways as a sum of consecutive naturals, for example, 1688 + ... + 6599.

It is an arithmetic number, because the mean of its divisors is an integer number (2393160).

Almost surely, 2^20352872 is an apocalyptic number.

It is an amenable number.

20352872 is a deficient number, since it is larger than the sum of its proper divisors (17937688).

20352872 is a wasteful number, since it uses less digits than its factorization.

20352872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600 (or 8596 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20352872 is about 4511.4157423142. The cubic root of 20352872 is about 273.0288671412.

The spelling of 20352872 in words is "twenty million, three hundred fifty-two thousand, eight hundred seventy-two".