20738229 has 8 divisors (see below), whose sum is σ = 27925152. Its totient is φ = 13688400.

The previous prime is 20738213. The next prime is 20738239. The reversal of 20738229 is 92283702.

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

It is not a de Polignac number, because 20738229 - 2⁴ = 20738213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20738229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738209) 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, 33919 + ... + 34524.

It is an arithmetic number, because the mean of its divisors is an integer number (3490644).

Almost surely, 2^20738229 is an apocalyptic number.

It is an amenable number.

20738229 is a deficient number, since it is larger than the sum of its proper divisors (7186923).

20738229 is a wasteful number, since it uses less digits than its factorization.

20738229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68547.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20738229 is about 4553.9245711803. The cubic root of 20738229 is about 274.7412618726.

The spelling of 20738229 in words is "twenty million, seven hundred thirty-eight thousand, two hundred twenty-nine".