19447148 has 12 divisors (see below), whose sum is σ = 38894352. Its totient is φ = 8334480.

The previous prime is 19447147. The next prime is 19447157. The reversal of 19447148 is 84174491.

19447148 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19447147) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 347243 + ... + 347298.

It is an arithmetic number, because the mean of its divisors is an integer number (3241196).

Almost surely, 2^19447148 is an apocalyptic number.

It is an amenable number.

19447148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19447148 is a wasteful number, since it uses less digits than its factorization.

19447148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694552 (or 694550 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 19447148 is about 4409.8920621711. The cubic root of 19447148 is about 268.9172365998.

The spelling of 19447148 in words is "nineteen million, four hundred forty-seven thousand, one hundred forty-eight".