74366216 has 8 divisors (see below), whose sum is σ = 139436670. Its totient is φ = 37183104.

The previous prime is 74366197. The next prime is 74366219. The reversal of 74366216 is 61266347.

It can be written as a sum of positive squares in only one way, i.e., 66357316 + 8008900 = 8146^2 + 2830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (74366219) 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 as a sum of consecutive naturals, namely, 4647881 + ... + 4647896.

Almost surely, 2^74366216 is an apocalyptic number.

74366216 is the 4610-th centered heptagonal number.

It is an amenable number.

74366216 is a deficient number, since it is larger than the sum of its proper divisors (65070454).

74366216 is a wasteful number, since it uses less digits than its factorization.

74366216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295783 (or 9295779 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 74366216 is about 8623.5848694148. The cubic root of 74366216 is about 420.5250726976.

The spelling of 74366216 in words is "seventy-four million, three hundred sixty-six thousand, two hundred sixteen".