74284216 has 32 divisors (see below), whose sum is σ = 141991200. Its totient is φ = 36426240.

The previous prime is 74284213. The next prime is 74284219. The reversal of 74284216 is 61248247.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74284213) and next prime (74284219).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74284211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181420 + ... + 181828.

It is an arithmetic number, because the mean of its divisors is an integer number (4437225).

Almost surely, 2^74284216 is an apocalyptic number.

It is an amenable number.

74284216 is a deficient number, since it is larger than the sum of its proper divisors (67706984).

74284216 is a wasteful number, since it uses less digits than its factorization.

74284216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 795 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 74284216 is about 8618.8291548214. The cubic root of 74284216 is about 420.3704516889.

The spelling of 74284216 in words is "seventy-four million, two hundred eighty-four thousand, two hundred sixteen".