74763828 has 72 divisors (see below), whose sum is σ = 198973320. Its totient is φ = 23656320.

The previous prime is 74763811. The next prime is 74763839. The reversal of 74763828 is 82836747.

It is a happy number.

74763828 is a `hidden beast` number, since 7 + 4 + 7 + 638 + 2 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11370384 + 63393444 = 3372^2 + 7962^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 1823488 + ... + 1823528.

Almost surely, 2^74763828 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 74763828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99486660).

74763828 is an abundant number, since it is smaller than the sum of its proper divisors (124209492).

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

74763828 is a wasteful number, since it uses less digits than its factorization.

74763828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 83 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 74763828 is about 8646.6078898028. The cubic root of 74763828 is about 421.2732112467.

The spelling of 74763828 in words is "seventy-four million, seven hundred sixty-three thousand, eight hundred twenty-eight".