43540992 has 120 divisors (see below), whose sum is σ = 137245680. Its totient is φ = 13178880.

The previous prime is 43540969. The next prime is 43541009. The reversal of 43540992 is 29904534.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50259 + ... + 51117.

It is an arithmetic number, because the mean of its divisors is an integer number (1143714).

Almost surely, 2^43540992 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 43540992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68622840).

43540992 is an abundant number, since it is smaller than the sum of its proper divisors (93704688).

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

43540992 is a wasteful number, since it uses less digits than its factorization.

43540992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 43540992 is about 6598.5598428748. The cubic root of 43540992 is about 351.8029199812.

The spelling of 43540992 in words is "forty-three million, five hundred forty thousand, nine hundred ninety-two".