20319227 has 8 divisors (see below), whose sum is σ = 22126800. Its totient is φ = 18585504.

The previous prime is 20319223. The next prime is 20319239. The reversal of 20319227 is 72291302.

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

It is a cyclic number.

It is not a de Polignac number, because 20319227 - 2² = 20319223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20319196 and 20319205.

It is not an unprimeable number, because it can be changed into a prime (20319223) 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, 17888 + ... + 18989.

It is an arithmetic number, because the mean of its divisors is an integer number (2765850).

Almost surely, 2^20319227 is an apocalyptic number.

20319227 is a deficient number, since it is larger than the sum of its proper divisors (1807573).

20319227 is a wasteful number, since it uses less digits than its factorization.

20319227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36925.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20319227 is about 4507.6853261957. The cubic root of 20319227 is about 272.8783376457.

The spelling of 20319227 in words is "twenty million, three hundred nineteen thousand, two hundred twenty-seven".