74043216 has 120 divisors (see below), whose sum is σ = 229403720. Its totient is φ = 22146048.

The previous prime is 74043199. The next prime is 74043217. The reversal of 74043216 is 61234047.

It can be written as a sum of positive squares in 4 ways, for example, as 11696400 + 62346816 = 3420^2 + 7896^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74043216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74043217) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 68730 + ... + 69798.

Almost surely, 2^74043216 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 74043216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114701860).

74043216 is an abundant number, since it is smaller than the sum of its proper divisors (155360504).

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

74043216 is a wasteful number, since it uses less digits than its factorization.

74043216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 74043216 is about 8604.8367793933. The cubic root of 74043216 is about 419.9153570927.

It can be divided in two parts, 740 and 43216, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 74043216 in words is "seventy-four million, forty-three thousand, two hundred sixteen".