43081652 has 12 divisors (see below), whose sum is σ = 77232036. Its totient is φ = 21015360.

The previous prime is 43081639. The next prime is 43081663. The reversal of 43081652 is 25618034.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 39891856 = 1786^2 + 6316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131183 + ... + 131510.

It is an arithmetic number, because the mean of its divisors is an integer number (6436003).

Almost surely, 2^43081652 is an apocalyptic number.

It is an amenable number.

43081652 is a deficient number, since it is larger than the sum of its proper divisors (34150384).

43081652 is a wasteful number, since it uses less digits than its factorization.

43081652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262738 (or 262736 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 43081652 is about 6563.6614781690. The cubic root of 43081652 is about 350.5614173446.

Adding to 43081652 its reverse (25618034), we get a palindrome (68699686).

The spelling of 43081652 in words is "forty-three million, eighty-one thousand, six hundred fifty-two".