20369229 has 8 divisors (see below), whose sum is σ = 27790752. Its totient is φ = 13263600.

The previous prime is 20369227. The next prime is 20369231. The reversal of 20369229 is 92296302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20369227) and next prime (20369231).

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

It is not a de Polignac number, because 20369229 - 2¹ = 20369227 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20369229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20369221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78822 + ... + 79079.

It is an arithmetic number, because the mean of its divisors is an integer number (3473844).

Almost surely, 2^20369229 is an apocalyptic number.

It is an amenable number.

20369229 is a deficient number, since it is larger than the sum of its proper divisors (7421523).

20369229 is a wasteful number, since it uses less digits than its factorization.

20369229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157947.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 20369229 is about 4513.2282237884. The cubic root of 20369229 is about 273.1019892921.

The spelling of 20369229 in words is "twenty million, three hundred sixty-nine thousand, two hundred twenty-nine".