226187440 has 40 divisors (see below), whose sum is σ = 527876928. Its totient is φ = 90132480.

The previous prime is 226187393. The next prime is 226187441. The reversal of 226187440 is 44781622.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 226187396 and 226187405.

It is not an unprimeable number, because it can be changed into a prime (226187441) 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, 16464 + ... + 26896.

Almost surely, 2^226187440 is an apocalyptic number.

226187440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226187440 is an abundant number, since it is smaller than the sum of its proper divisors (301689488).

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

226187440 is a wasteful number, since it uses less digits than its factorization.

226187440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10717 (or 10711 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 226187440 is about 15039.5292479519. The cubic root of 226187440 is about 609.2882857633.

The spelling of 226187440 in words is "two hundred twenty-six million, one hundred eighty-seven thousand, four hundred forty".