20338536 has 32 divisors (see below), whose sum is σ = 51242400. Its totient is φ = 6726720.

The previous prime is 20338529. The next prime is 20338561. The reversal of 20338536 is 63583302.

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 7 ways as a sum of consecutive naturals, for example, 91 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (1601325).

Almost surely, 2^20338536 is an apocalyptic number.

It is an amenable number.

20338536 is an abundant number, since it is smaller than the sum of its proper divisors (30903864).

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

20338536 is a wasteful number, since it uses less digits than its factorization.

20338536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609 (or 6605 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 20338536 is about 4509.8266042055. The cubic root of 20338536 is about 272.9647474238.

The spelling of 20338536 in words is "twenty million, three hundred thirty-eight thousand, five hundred thirty-six".