19949498 has 8 divisors (see below), whose sum is σ = 30049140. Its totient is φ = 9933120.

The previous prime is 19949497. The next prime is 19949537. The reversal of 19949498 is 89494991.

It can be written as a sum of positive squares in 2 ways, for example, as 18861649 + 1087849 = 4343^2 + 1043^2 .

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

It is not an unprimeable number, because it can be changed into a prime (19949497) 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, 20213 + ... + 21176.

Almost surely, 2^19949498 is an apocalyptic number.

19949498 is a deficient number, since it is larger than the sum of its proper divisors (10099642).

19949498 is a wasteful number, since it uses less digits than its factorization.

19949498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41632.

The product of its digits is 839808, while the sum is 53.

The square root of 19949498 is about 4466.4860908773. The cubic root of 19949498 is about 271.2130965531.

It can be divided in two parts, 1 and 9949498, that added together give a palindrome (9949499).

The spelling of 19949498 in words is "nineteen million, nine hundred forty-nine thousand, four hundred ninety-eight".