43871022 has 48 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 13208256.

The previous prime is 43870993. The next prime is 43871039. The reversal of 43871022 is 22017834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9004 + ... + 12992.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^43871022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43871022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52284960).

43871022 is an abundant number, since it is smaller than the sum of its proper divisors (60698898).

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

43871022 is a wasteful number, since it uses less digits than its factorization.

43871022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 43871022 is about 6623.5203630698. The cubic root of 43871022 is about 352.6895434520.

Adding to 43871022 its reverse (22017834), we get a palindrome (65888856).

The spelling of 43871022 in words is "forty-three million, eight hundred seventy-one thousand, twenty-two".