226666140 has 24 divisors (see below), whose sum is σ = 634665360. Its totient is φ = 60444288.

The previous prime is 226666123. The next prime is 226666147. The reversal of 226666140 is 41666622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226666147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1888825 + ... + 1888944.

It is an arithmetic number, because the mean of its divisors is an integer number (26444390).

Almost surely, 2^226666140 is an apocalyptic number.

226666140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226666140 is an abundant number, since it is smaller than the sum of its proper divisors (407999220).

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

226666140 is a wasteful number, since it uses less digits than its factorization.

226666140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777781 (or 3777779 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 226666140 is about 15055.4355632775. The cubic root of 226666140 is about 609.7178126849.

The spelling of 226666140 in words is "two hundred twenty-six million, six hundred sixty-six thousand, one hundred forty".