19381952 has 14 divisors (see below), whose sum is σ = 38461188. Its totient is φ = 9690944.

The previous prime is 19381931. The next prime is 19381963. The reversal of 19381952 is 25918391.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151358 + ... + 151485.

Almost surely, 2^19381952 is an apocalyptic number.

It is an amenable number.

19381952 is a deficient number, since it is larger than the sum of its proper divisors (19079236).

19381952 is an equidigital number, since it uses as much as digits as its factorization.

19381952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302855 (or 302845 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 19381952 is about 4402.4938387237. The cubic root of 19381952 is about 268.6163877395.

The spelling of 19381952 in words is "nineteen million, three hundred eighty-one thousand, nine hundred fifty-two".