20674227 has 24 divisors (see below), whose sum is σ = 33956496. Its totient is φ = 11117568.

The previous prime is 20674207. The next prime is 20674237. The reversal of 20674227 is 72247602.

It is not a de Polignac number, because 20674227 - 2⁸ = 20673971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20674194 and 20674203.

It is not an unprimeable number, because it can be changed into a prime (20674207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1638 + ... + 6635.

It is an arithmetic number, because the mean of its divisors is an integer number (1414854).

Almost surely, 2^20674227 is an apocalyptic number.

20674227 is a deficient number, since it is larger than the sum of its proper divisors (13282269).

20674227 is a wasteful number, since it uses less digits than its factorization.

20674227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8307 (or 8300 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 20674227 is about 4546.8920154321. The cubic root of 20674227 is about 274.4583365488.

The spelling of 20674227 in words is "twenty million, six hundred seventy-four thousand, two hundred twenty-seven".