19973484 has 36 divisors (see below), whose sum is σ = 53147640. Its totient is φ = 6307200.

The previous prime is 19973483. The next prime is 19973497. The reversal of 19973484 is 48437991.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (19973483) 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, 13917 + ... + 15284.

Almost surely, 2^19973484 is an apocalyptic number.

It is an amenable number.

19973484 is an abundant number, since it is smaller than the sum of its proper divisors (33174156).

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

19973484 is a wasteful number, since it uses less digits than its factorization.

19973484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29230 (or 29225 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 19973484 is about 4469.1703928134. The cubic root of 19973484 is about 271.3217494439.

The spelling of 19973484 in words is "nineteen million, nine hundred seventy-three thousand, four hundred eighty-four".