226531644 has 24 divisors (see below), whose sum is σ = 546801360. Its totient is φ = 72906624.

The previous prime is 226531633. The next prime is 226531691. The reversal of 226531644 is 446135622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325129 + ... + 325824.

It is an arithmetic number, because the mean of its divisors is an integer number (22783390).

Almost surely, 2^226531644 is an apocalyptic number.

It is an amenable number.

226531644 is an abundant number, since it is smaller than the sum of its proper divisors (320269716).

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

226531644 is a wasteful number, since it uses less digits than its factorization.

226531644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650989 (or 650987 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 226531644 is about 15050.9682080589. The cubic root of 226531644 is about 609.5971935342.

The spelling of 226531644 in words is "two hundred twenty-six million, five hundred thirty-one thousand, six hundred forty-four".