19472444 has 12 divisors (see below), whose sum is σ = 35558544. Its totient is φ = 9312864.

The previous prime is 19472437. The next prime is 19472447. The reversal of 19472444 is 44427491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19472447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105737 + ... + 105920.

It is an arithmetic number, because the mean of its divisors is an integer number (2963212).

Almost surely, 2^19472444 is an apocalyptic number.

It is an amenable number.

19472444 is a deficient number, since it is larger than the sum of its proper divisors (16086100).

19472444 is a wasteful number, since it uses less digits than its factorization.

19472444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211684 (or 211682 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 19472444 is about 4412.7592275129. The cubic root of 19472444 is about 269.0337846761.

The spelling of 19472444 in words is "nineteen million, four hundred seventy-two thousand, four hundred forty-four".