226649985 has 16 divisors (see below), whose sum is σ = 363994560. Its totient is φ = 120428480.

The previous prime is 226649971. The next prime is 226649989. The reversal of 226649985 is 589946622.

It is not a de Polignac number, because 226649985 - 2⁹ = 226649473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226649989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24051 + ... + 32120.

It is an arithmetic number, because the mean of its divisors is an integer number (22749660).

Almost surely, 2^226649985 is an apocalyptic number.

It is an amenable number.

226649985 is a deficient number, since it is larger than the sum of its proper divisors (137344575).

226649985 is a wasteful number, since it uses less digits than its factorization.

226649985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56448.

The product of its digits is 1866240, while the sum is 51.

The square root of 226649985 is about 15054.8990365263. The cubic root of 226649985 is about 609.7033270258.

The spelling of 226649985 in words is "two hundred twenty-six million, six hundred forty-nine thousand, nine hundred eighty-five".