19490882 has 4 divisors (see below), whose sum is σ = 29236326. Its totient is φ = 9745440.

The previous prime is 19490873. The next prime is 19490899. The reversal of 19490882 is 28809491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28809491 = 19 ⋅1516289.

It can be written as a sum of positive squares in only one way, i.e., 16072081 + 3418801 = 4009^2 + 1849^2 .

It is a super-2 number, since 2×19490882² = 759788962275848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4872719 + ... + 4872722.

Almost surely, 2^19490882 is an apocalyptic number.

19490882 is a deficient number, since it is larger than the sum of its proper divisors (9745444).

19490882 is an equidigital number, since it uses as much as digits as its factorization.

19490882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745443.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 19490882 is about 4414.8479022499. The cubic root of 19490882 is about 269.1186718138.

The spelling of 19490882 in words is "nineteen million, four hundred ninety thousand, eight hundred eighty-two".