43997408 has 96 divisors (see below), whose sum is σ = 110496960. Its totient is φ = 16773120.

The previous prime is 43997353. The next prime is 43997419. The reversal of 43997408 is 80479934.

43997408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84188 + ... + 84708.

It is an arithmetic number, because the mean of its divisors is an integer number (1151010).

Almost surely, 2^43997408 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 43997408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55248480).

43997408 is an abundant number, since it is smaller than the sum of its proper divisors (66499552).

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

43997408 is a wasteful number, since it uses less digits than its factorization.

43997408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 43997408 is about 6633.0541984820. The cubic root of 43997408 is about 353.0279010761.

The spelling of 43997408 in words is "forty-three million, nine hundred ninety-seven thousand, four hundred eight".