43273216 has 44 divisors (see below), whose sum is σ = 98878288. Its totient is φ = 18542592.

The previous prime is 43273213. The next prime is 43273253. The reversal of 43273216 is 61237234.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (43273213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4150 + ... + 10186.

Almost surely, 2^43273216 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 43273216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49439144).

43273216 is an abundant number, since it is smaller than the sum of its proper divisors (55605072).

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

43273216 is an equidigital number, since it uses as much as digits as its factorization.

43273216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064 (or 6046 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 43273216 is about 6578.2380619737. The cubic root of 43273216 is about 351.0802434483.

The spelling of 43273216 in words is "forty-three million, two hundred seventy-three thousand, two hundred sixteen".