20031032 has 64 divisors (see below), whose sum is σ = 46422720. Its totient is φ = 7907328.

The previous prime is 20031029. The next prime is 20031041. The reversal of 20031032 is 23013002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50258 + ... + 50654.

It is an arithmetic number, because the mean of its divisors is an integer number (725355).

Almost surely, 2^20031032 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 20031032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23211360).

20031032 is an abundant number, since it is smaller than the sum of its proper divisors (26391688).

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

20031032 is a wasteful number, since it uses less digits than its factorization.

20031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20031032 is about 4475.6040933041. The cubic root of 20031032 is about 271.5820787916.

Adding to 20031032 its reverse (23013002), we get a palindrome (43044034).

The spelling of 20031032 in words is "twenty million, thirty-one thousand, thirty-two".