226666642 has 8 divisors (see below), whose sum is σ = 344304000. Its totient is φ = 111898644.

The previous prime is 226666579. The next prime is 226666669. The reversal of 226666642 is 246666622.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 226666595 and 226666604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717142 + ... + 717457.

It is an arithmetic number, because the mean of its divisors is an integer number (43038000).

Almost surely, 2^226666642 is an apocalyptic number.

226666642 is a deficient number, since it is larger than the sum of its proper divisors (117637358).

226666642 is a wasteful number, since it uses less digits than its factorization.

226666642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434680.

The product of its digits is 248832, while the sum is 40.

The square root of 226666642 is about 15055.4522349878. The cubic root of 226666642 is about 609.7182628008.

The spelling of 226666642 in words is "two hundred twenty-six million, six hundred sixty-six thousand, six hundred forty-two".