19408964 has 12 divisors (see below), whose sum is σ = 35442624. Its totient is φ = 9282504.

The previous prime is 19408931. The next prime is 19408967. The reversal of 19408964 is 46980491.

It is not an unprimeable number, because it can be changed into a prime (19408967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105392 + ... + 105575.

It is an arithmetic number, because the mean of its divisors is an integer number (2953552).

Almost surely, 2^19408964 is an apocalyptic number.

It is an amenable number.

19408964 is a deficient number, since it is larger than the sum of its proper divisors (16033660).

19408964 is a wasteful number, since it uses less digits than its factorization.

19408964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210994 (or 210992 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 19408964 is about 4405.5605772705. The cubic root of 19408964 is about 268.7411171392.

The spelling of 19408964 in words is "nineteen million, four hundred eight thousand, nine hundred sixty-four".