19482993 has 12 divisors (see below), whose sum is σ = 28204020. Its totient is φ = 12960096.

The previous prime is 19482989. The next prime is 19483027. The reversal of 19482993 is 39928491.

It can be written as a sum of positive squares in 2 ways, for example, as 8573184 + 10909809 = 2928^2 + 3303^2 .

It is not a de Polignac number, because 19482993 - 2² = 19482989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19483993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2455 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (2350335).

Almost surely, 2^19482993 is an apocalyptic number.

It is an amenable number.

19482993 is a deficient number, since it is larger than the sum of its proper divisors (8721027).

19482993 is a wasteful number, since it uses less digits than its factorization.

19482993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768 (or 4765 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 19482993 is about 4413.9543495600. The cubic root of 19482993 is about 269.0823580183.

The spelling of 19482993 in words is "nineteen million, four hundred eighty-two thousand, nine hundred ninety-three".