19903082 has 4 divisors (see below), whose sum is σ = 29854626. Its totient is φ = 9951540.

The previous prime is 19903069. The next prime is 19903097. The reversal of 19903082 is 28030991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28030991 = 67 ⋅418373.

It can be written as a sum of positive squares in only one way, i.e., 11498881 + 8404201 = 3391^2 + 2899^2 .

It is a super-2 number, since 2×19903082² = 792265346197448, 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, 4975769 + ... + 4975772.

Almost surely, 2^19903082 is an apocalyptic number.

19903082 is a deficient number, since it is larger than the sum of its proper divisors (9951544).

19903082 is an equidigital number, since it uses as much as digits as its factorization.

19903082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9951543.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 19903082 is about 4461.2870340295. The cubic root of 19903082 is about 271.0025916247.

The spelling of 19903082 in words is "nineteen million, nine hundred three thousand, eighty-two".