74036556 has 144 divisors (see below), whose sum is σ = 217771008. Its totient is φ = 20995200.

The previous prime is 74036551. The next prime is 74036569. The reversal of 74036556 is 65563047.

74036556 is a `hidden beast` number, since 74 + 0 + 36 + 556 = 666.

It is a super-2 number, since 2×74036556² = 10962823248682272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74036556.

It is not an unprimeable number, because it can be changed into a prime (74036551) 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 47 ways as a sum of consecutive naturals, for example, 454131 + ... + 454293.

Almost surely, 2^74036556 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 74036556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108885504).

74036556 is an abundant number, since it is smaller than the sum of its proper divisors (143734452).

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

74036556 is a wasteful number, since it uses less digits than its factorization.

74036556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 74036556 is about 8604.4497790388. The cubic root of 74036556 is about 419.9027666071.

The spelling of 74036556 in words is "seventy-four million, thirty-six thousand, five hundred fifty-six".