20031882 has 32 divisors (see below), whose sum is σ = 45686592. Its totient is φ = 5800704.

The previous prime is 20031881. The next prime is 20031883. The reversal of 20031882 is 28813002.

It is an interprime number because it is at equal distance from previous prime (20031881) and next prime (20031883).

It is not an unprimeable number, because it can be changed into a prime (20031881) 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 15 ways as a sum of consecutive naturals, for example, 6228 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (1427706).

Almost surely, 2^20031882 is an apocalyptic number.

20031882 is an abundant number, since it is smaller than the sum of its proper divisors (25654710).

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

20031882 is a wasteful number, since it uses less digits than its factorization.

20031882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20031882 is about 4475.6990515449. The cubic root of 20031882 is about 271.5859201897.

Adding to 20031882 its reverse (28813002), we get a palindrome (48844884).

The spelling of 20031882 in words is "twenty million, thirty-one thousand, eight hundred eighty-two".