74181366 has 32 divisors (see below), whose sum is σ = 188398080. Its totient is φ = 21194568.

The previous prime is 74181347. The next prime is 74181427. The reversal of 74181366 is 66318147.

It is a self number, because there is not a number n which added to its sum of digits gives 74181366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97746 + ... + 98501.

It is an arithmetic number, because the mean of its divisors is an integer number (5887440).

Almost surely, 2^74181366 is an apocalyptic number.

74181366 is an abundant number, since it is smaller than the sum of its proper divisors (114216714).

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

74181366 is a wasteful number, since it uses less digits than its factorization.

74181366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196265 (or 196259 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 74181366 is about 8612.8605004377. The cubic root of 74181366 is about 420.1763545113.

It can be divided in two parts, 74181 and 366, that added together give a palindrome (74547).

The spelling of 74181366 in words is "seventy-four million, one hundred eighty-one thousand, three hundred sixty-six".