226640404447 has 8 divisors (see below), whose sum is σ = 228821216976. Its totient is φ = 224460752832.

The previous prime is 226640404409. The next prime is 226640404451. The reversal of 226640404447 is 744404046622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226640404447 - 2²³ = 226632015839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226640404477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104673 + ... + 681349.

It is an arithmetic number, because the mean of its divisors is an integer number (28602652122).

Almost surely, 2^226640404447 is an apocalyptic number.

226640404447 is a deficient number, since it is larger than the sum of its proper divisors (2180812529).

226640404447 is a wasteful number, since it uses less digits than its factorization.

226640404447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580457.

The product of its (nonzero) digits is 1032192, while the sum is 43.

The spelling of 226640404447 in words is "two hundred twenty-six billion, six hundred forty million, four hundred four thousand, four hundred forty-seven".