43531796 has 72 divisors (see below), whose sum is σ = 98556192. Its totient is φ = 16632000.

The previous prime is 43531783. The next prime is 43531799. The reversal of 43531796 is 69713534.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43531799) 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 23 ways as a sum of consecutive naturals, for example, 131351 + ... + 131681.

It is an arithmetic number, because the mean of its divisors is an integer number (1368836).

Almost surely, 2^43531796 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 43531796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49278096).

43531796 is an abundant number, since it is smaller than the sum of its proper divisors (55024396).

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

43531796 is a wasteful number, since it uses less digits than its factorization.

43531796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 412 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 43531796 is about 6597.8629873619. The cubic root of 43531796 is about 351.7781509280.

The spelling of 43531796 in words is "forty-three million, five hundred thirty-one thousand, seven hundred ninety-six".