20143032 has 128 divisors (see below), whose sum is σ = 64834560. Its totient is φ = 5068800.

The previous prime is 20143031. The next prime is 20143033. The reversal of 20143032 is 23034102.

It is an interprime number because it is at equal distance from previous prime (20143031) and next prime (20143033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50032 + ... + 50432.

It is an arithmetic number, because the mean of its divisors is an integer number (506520).

Almost surely, 2^20143032 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 20143032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32417280).

20143032 is an abundant number, since it is smaller than the sum of its proper divisors (44691528).

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

20143032 is a wasteful number, since it uses less digits than its factorization.

20143032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20143032 is about 4488.0989293909. The cubic root of 20143032 is about 272.0873061720.

Adding to 20143032 its reverse (23034102), we get a palindrome (43177134).

The spelling of 20143032 in words is "twenty million, one hundred forty-three thousand, thirty-two".