20239016 has 16 divisors (see below), whose sum is σ = 43369440. Its totient is φ = 8673840.

The previous prime is 20239003. The next prime is 20239019. The reversal of 20239016 is 61093202.

It is a junction number, because it is equal to n+sod(n) for n = 20238982 and 20239000.

It is not an unprimeable number, because it can be changed into a prime (20239019) 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, 180650 + ... + 180761.

It is an arithmetic number, because the mean of its divisors is an integer number (2710590).

Almost surely, 2^20239016 is an apocalyptic number.

It is an amenable number.

20239016 is an abundant number, since it is smaller than the sum of its proper divisors (23130424).

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

20239016 is a wasteful number, since it uses less digits than its factorization.

20239016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361424 (or 361420 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20239016 is about 4498.7793900124. The cubic root of 20239016 is about 272.5187979064.

The spelling of 20239016 in words is "twenty million, two hundred thirty-nine thousand, sixteen".