19798632 has 96 divisors (see below), whose sum is σ = 61913280. Its totient is φ = 5598720.

The previous prime is 19798631. The next prime is 19798637. The reversal of 19798632 is 23689791.

19798632 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 8 + 632 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (19798631) 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 23 ways as a sum of consecutive naturals, for example, 82032 + ... + 82272.

It is an arithmetic number, because the mean of its divisors is an integer number (644930).

Almost surely, 2^19798632 is an apocalyptic number.

19798632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19798632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30956640).

19798632 is an abundant number, since it is smaller than the sum of its proper divisors (42114648).

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

19798632 is a wasteful number, since it uses less digits than its factorization.

19798632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 416 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 19798632 is about 4449.5653720335. The cubic root of 19798632 is about 270.5276922778.

The spelling of 19798632 in words is "nineteen million, seven hundred ninety-eight thousand, six hundred thirty-two".