74083220 has 12 divisors (see below), whose sum is σ = 155574804. Its totient is φ = 29633280.

The previous prime is 74083201. The next prime is 74083237. The reversal of 74083220 is 2238047.

It can be written as a sum of positive squares in 2 ways, for example, as 31494544 + 42588676 = 5612^2 + 6526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74083220.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1852061 + ... + 1852100.

It is an arithmetic number, because the mean of its divisors is an integer number (12964567).

Almost surely, 2^74083220 is an apocalyptic number.

It is an amenable number.

74083220 is an abundant number, since it is smaller than the sum of its proper divisors (81491584).

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

74083220 is a wasteful number, since it uses less digits than its factorization.

74083220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704170 (or 3704168 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 74083220 is about 8607.1609721208. The cubic root of 74083220 is about 419.9909673039.

The spelling of 74083220 in words is "seventy-four million, eighty-three thousand, two hundred twenty".