20329227 has 6 divisors (see below), whose sum is σ = 29364452. Its totient is φ = 13552812.

The previous prime is 20329201. The next prime is 20329237. The reversal of 20329227 is 72292302.

It is not a de Polignac number, because 20329227 - 2¹¹ = 20327179 is a prime.

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 20329227.

It is not an unprimeable number, because it can be changed into a prime (20329237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1129393 + ... + 1129410.

Almost surely, 2^20329227 is an apocalyptic number.

20329227 is a deficient number, since it is larger than the sum of its proper divisors (9035225).

20329227 is a wasteful number, since it uses less digits than its factorization.

20329227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258809 (or 2258806 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20329227 is about 4508.7944064905. The cubic root of 20329227 is about 272.9230955138.

The spelling of 20329227 in words is "twenty million, three hundred twenty-nine thousand, two hundred twenty-seven".