19488993 has 8 divisors (see below), whose sum is σ = 26014656. Its totient is φ = 12978000.

The previous prime is 19488991. The next prime is 19489007. The reversal of 19488993 is 39988491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19488993 - 2¹ = 19488991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19488991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (3251832).

Almost surely, 2^19488993 is an apocalyptic number.

It is an amenable number.

19488993 is a deficient number, since it is larger than the sum of its proper divisors (6525663).

19488993 is a wasteful number, since it uses less digits than its factorization.

19488993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335.

The product of its digits is 559872, while the sum is 51.

The square root of 19488993 is about 4414.6339599111. The cubic root of 19488993 is about 269.1099774647.

The spelling of 19488993 in words is "nineteen million, four hundred eighty-eight thousand, nine hundred ninety-three".