74273166 has 64 divisors (see below), whose sum is σ = 189561600. Its totient is φ = 21319200.

The previous prime is 74273161. The next prime is 74273189. The reversal of 74273166 is 66137247.

It is a self number, because there is not a number n which added to its sum of digits gives 74273166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74273161) 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 31 ways as a sum of consecutive naturals, for example, 7996 + ... + 14576.

It is an arithmetic number, because the mean of its divisors is an integer number (2961900).

Almost surely, 2^74273166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74273166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94780800).

74273166 is an abundant number, since it is smaller than the sum of its proper divisors (115288434).

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

74273166 is a wasteful number, since it uses less digits than its factorization.

74273166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622 (or 6616 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 74273166 is about 8618.1880926329. The cubic root of 74273166 is about 420.3496068666.

The spelling of 74273166 in words is "seventy-four million, two hundred seventy-three thousand, one hundred sixty-six".