43913376 has 144 divisors (see below), whose sum is σ = 138555144. Its totient is φ = 13105152.

The previous prime is 43913327. The next prime is 43913381. The reversal of 43913376 is 67331934.

It can be written as a sum of positive squares in 4 ways, for example, as 28515600 + 15397776 = 5340^2 + 3924^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a self number, because there is not a number n which added to its sum of digits gives 43913376.

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, 138370 + ... + 138686.

Almost surely, 2^43913376 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 43913376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69277572).

43913376 is an abundant number, since it is smaller than the sum of its proper divisors (94641768).

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

43913376 is a wasteful number, since it uses less digits than its factorization.

43913376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 372 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 43913376 is about 6626.7168341495. The cubic root of 43913376 is about 352.8030048952.

The spelling of 43913376 in words is "forty-three million, nine hundred thirteen thousand, three hundred seventy-six".