19245668 has 24 divisors (see below), whose sum is σ = 37443840. Its totient is φ = 8595360.

The previous prime is 19245659. The next prime is 19245679. The reversal of 19245668 is 86654291.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 4358 + ... + 7581.

It is an arithmetic number, because the mean of its divisors is an integer number (1560160).

Almost surely, 2^19245668 is an apocalyptic number.

It is an amenable number.

19245668 is a deficient number, since it is larger than the sum of its proper divisors (18198172).

19245668 is a wasteful number, since it uses less digits than its factorization.

19245668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987 (or 11985 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 19245668 is about 4386.9884887016. The cubic root of 19245668 is about 267.9853151529.

The spelling of 19245668 in words is "nineteen million, two hundred forty-five thousand, six hundred sixty-eight".