19798148 has 12 divisors (see below), whose sum is σ = 34708800. Its totient is φ = 9881352.

The previous prime is 19798117. The next prime is 19798153. The reversal of 19798148 is 84189791.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736 + ... + 6527.

It is an arithmetic number, because the mean of its divisors is an integer number (2892400).

Almost surely, 2^19798148 is an apocalyptic number.

It is an amenable number.

19798148 is a deficient number, since it is larger than the sum of its proper divisors (14910652).

19798148 is a wasteful number, since it uses less digits than its factorization.

19798148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866 (or 8864 counting only the distinct ones).

The product of its digits is 145152, while the sum is 47.

The square root of 19798148 is about 4449.5109843667. The cubic root of 19798148 is about 270.5254878078.

The spelling of 19798148 in words is "nineteen million, seven hundred ninety-eight thousand, one hundred forty-eight".