20116432 has 40 divisors (see below), whose sum is σ = 45590336. Its totient is φ = 8418816.

The previous prime is 20116429. The next prime is 20116441. The reversal of 20116432 is 23461102.

It is a congruent number.

It is an unprimeable number.

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, 2728 + ... + 6904.

Almost surely, 2^20116432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20116432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22795168).

20116432 is an abundant number, since it is smaller than the sum of its proper divisors (25473904).

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

20116432 is a wasteful number, since it uses less digits than its factorization.

20116432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20116432 is about 4485.1345576248. The cubic root of 20116432 is about 271.9674845792.

Adding to 20116432 its reverse (23461102), we get a palindrome (43577534).

The spelling of 20116432 in words is "twenty million, one hundred sixteen thousand, four hundred thirty-two".