19963952 has 20 divisors (see below), whose sum is σ = 38825640. Its totient is φ = 9944448.

The previous prime is 19963949. The next prime is 19963961. The reversal of 19963952 is 25936991.

It is an unprimeable number.

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, 2324 + ... + 6732.

It is an arithmetic number, because the mean of its divisors is an integer number (1941282).

Almost surely, 2^19963952 is an apocalyptic number.

It is an amenable number.

19963952 is a deficient number, since it is larger than the sum of its proper divisors (18861688).

19963952 is a wasteful number, since it uses less digits than its factorization.

19963952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700 (or 4694 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 19963952 is about 4468.1038483903. The cubic root of 19963952 is about 271.2785813711.

The spelling of 19963952 in words is "nineteen million, nine hundred sixty-three thousand, nine hundred fifty-two".