226766440 has 24 divisors (see below), whose sum is σ = 510438870. Its totient is φ = 90668480.

The previous prime is 226766431. The next prime is 226766443. The reversal of 226766440 is 44667622.

It can be written as a sum of positive squares in 3 ways, for example, as 26770276 + 199996164 = 5174^2 + 14142^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 226766440.

It is not an unprimeable number, because it can be changed into a prime (226766443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94050 + ... + 96430.

Almost surely, 2^226766440 is an apocalyptic number.

226766440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226766440 is an abundant number, since it is smaller than the sum of its proper divisors (283672430).

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

226766440 is an frugal number, since it uses more digits than its factorization.

226766440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 226766440 is about 15058.7662177218. The cubic root of 226766440 is about 609.8077330093.

The spelling of 226766440 in words is "two hundred twenty-six million, seven hundred sixty-six thousand, four hundred forty".