19816968 has 32 divisors (see below), whose sum is σ = 52457760. Its totient is φ = 6216960.

The previous prime is 19816933. The next prime is 19816987. The reversal of 19816968 is 86961891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23878 + ... + 24693.

It is an arithmetic number, because the mean of its divisors is an integer number (1639305).

Almost surely, 2^19816968 is an apocalyptic number.

It is an amenable number.

19816968 is an abundant number, since it is smaller than the sum of its proper divisors (32640792).

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

19816968 is a wasteful number, since it uses less digits than its factorization.

19816968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48597 (or 48593 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 19816968 is about 4451.6253211608. The cubic root of 19816968 is about 270.6111806259.

The spelling of 19816968 in words is "nineteen million, eight hundred sixteen thousand, nine hundred sixty-eight".