19634412 has 24 divisors (see below), whose sum is σ = 52358656. Its totient is φ = 5609808.

The previous prime is 19634401. The next prime is 19634413. The reversal of 19634412 is 21443691.

It is a self number, because there is not a number n which added to its sum of digits gives 19634412.

It is not an unprimeable number, because it can be changed into a prime (19634413) 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 7 ways as a sum of consecutive naturals, for example, 116788 + ... + 116955.

Almost surely, 2^19634412 is an apocalyptic number.

19634412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19634412 is an abundant number, since it is smaller than the sum of its proper divisors (32724244).

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

19634412 is a wasteful number, since it uses less digits than its factorization.

19634412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233757 (or 233755 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 19634412 is about 4431.0734591067. The cubic root of 19634412 is about 269.7776495877. Note that the first 3 decimals are identical.

The spelling of 19634412 in words is "nineteen million, six hundred thirty-four thousand, four hundred twelve".