226687644 has 36 divisors (see below), whose sum is σ = 573953016. Its totient is φ = 75439008.

The previous prime is 226687631. The next prime is 226687663. The reversal of 226687644 is 446786622.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 226687644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18687 + ... + 28329.

Almost surely, 2^226687644 is an apocalyptic number.

It is an amenable number.

226687644 is an abundant number, since it is smaller than the sum of its proper divisors (347265372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226687644 is a wasteful number, since it uses less digits than its factorization.

226687644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306 (or 10301 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 226687644 is about 15056.1497070134. The cubic root of 226687644 is about 609.7370935492.

The spelling of 226687644 in words is "two hundred twenty-six million, six hundred eighty-seven thousand, six hundred forty-four".