20738163 has 8 divisors (see below), whose sum is σ = 28542976. Its totient is φ = 13379400.

The previous prime is 20738141. The next prime is 20738173. The reversal of 20738163 is 36183702.

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

It is not a de Polignac number, because 20738163 - 2¹⁰ = 20737139 is a prime.

It is a super-2 number, since 2×20738163² = 860142809229138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20738163.

It is not an unprimeable number, because it can be changed into a prime (20738173) 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 7 ways as a sum of consecutive naturals, for example, 111403 + ... + 111588.

It is an arithmetic number, because the mean of its divisors is an integer number (3567872).

Almost surely, 2^20738163 is an apocalyptic number.

20738163 is a deficient number, since it is larger than the sum of its proper divisors (7804813).

20738163 is a wasteful number, since it uses less digits than its factorization.

20738163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223025.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20738163 is about 4553.9173246777. The cubic root of 20738163 is about 274.7409704150.

The spelling of 20738163 in words is "twenty million, seven hundred thirty-eight thousand, one hundred sixty-three".