19903482 has 20 divisors (see below), whose sum is σ = 44598906. Its totient is φ = 6634440.

The previous prime is 19903459. The next prime is 19903529. The reversal of 19903482 is 28430991.

It can be written as a sum of positive squares in only one way, i.e., 11029041 + 8874441 = 3321^2 + 2979^2 .

It is a super-2 number, since 2×19903482² = 792297191448648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61269 + ... + 61592.

Almost surely, 2^19903482 is an apocalyptic number.

19903482 is an abundant number, since it is smaller than the sum of its proper divisors (24695424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19903482 is a wasteful number, since it uses less digits than its factorization.

19903482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122875 (or 122866 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 19903482 is about 4461.3318639169. The cubic root of 19903482 is about 271.0044070942.

The spelling of 19903482 in words is "nineteen million, nine hundred three thousand, four hundred eighty-two".