43716816 has 180 divisors, whose sum is σ = 145574884. Its totient is φ = 12165120.

The previous prime is 43716797. The next prime is 43716821. The reversal of 43716816 is 61861734.

It can be written as a sum of positive squares in 2 ways, for example, as 8433216 + 35283600 = 2904^2 + 5940^2 .

It is a super-2 number, since 2×43716816² = 3822320002355712, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 226416 + ... + 226608.

Almost surely, 2^43716816 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 43716816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72787442).

43716816 is an abundant number, since it is smaller than the sum of its proper divisors (101858068).

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

43716816 is a wasteful number, since it uses less digits than its factorization.

43716816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 222 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 43716816 is about 6611.8693272024. The cubic root of 43716816 is about 352.2758254747.

The spelling of 43716816 in words is "forty-three million, seven hundred sixteen thousand, eight hundred sixteen".