20047226 has 4 divisors (see below), whose sum is σ = 30070842. Its totient is φ = 10023612.

The previous prime is 20047201. The next prime is 20047241. The reversal of 20047226 is 62274002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 9150625 = 3301^2 + 3025^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011805 + ... + 5011808.

Almost surely, 2^20047226 is an apocalyptic number.

20047226 is a deficient number, since it is larger than the sum of its proper divisors (10023616).

20047226 is a wasteful number, since it uses less digits than its factorization.

20047226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023615.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20047226 is about 4477.4128690573. The cubic root of 20047226 is about 271.6552455250.

The spelling of 20047226 in words is "twenty million, forty-seven thousand, two hundred twenty-six".