19226668 has 6 divisors (see below), whose sum is σ = 33646676. Its totient is φ = 9613332.

The previous prime is 19226659. The next prime is 19226671. The reversal of 19226668 is 86662291.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19226668.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2403330 + ... + 2403337.

Almost surely, 2^19226668 is an apocalyptic number.

It is an amenable number.

19226668 is a deficient number, since it is larger than the sum of its proper divisors (14420008).

19226668 is a wasteful number, since it uses less digits than its factorization.

19226668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806671 (or 4806669 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 19226668 is about 4384.8224593477. The cubic root of 19226668 is about 267.8970979416.

The spelling of 19226668 in words is "nineteen million, two hundred twenty-six thousand, six hundred sixty-eight".