226520428 has 6 divisors (see below), whose sum is σ = 396410756. Its totient is φ = 113260212.

The previous prime is 226520423. The next prime is 226520429. The reversal of 226520428 is 824025622.

It is a self number, because there is not a number n which added to its sum of digits gives 226520428.

It is not an unprimeable number, because it can be changed into a prime (226520423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28315050 + ... + 28315057.

Almost surely, 2^226520428 is an apocalyptic number.

It is an amenable number.

226520428 is a deficient number, since it is larger than the sum of its proper divisors (169890328).

226520428 is a wasteful number, since it uses less digits than its factorization.

226520428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56630111 (or 56630109 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 226520428 is about 15050.5956028325. The cubic root of 226520428 is about 609.5871326073.

The spelling of 226520428 in words is "two hundred twenty-six million, five hundred twenty thousand, four hundred twenty-eight".