74347434 has 96 divisors (see below), whose sum is σ = 191168640. Its totient is φ = 20445696.

The previous prime is 74347423. The next prime is 74347439. The reversal of 74347434 is 43474347.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74347439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 542614 + ... + 542750.

It is an arithmetic number, because the mean of its divisors is an integer number (1991340).

Almost surely, 2^74347434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74347434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95584320).

74347434 is an abundant number, since it is smaller than the sum of its proper divisors (116821206).

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

74347434 is a wasteful number, since it uses less digits than its factorization.

74347434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 281 counting only the distinct ones).

The product of its digits is 112896, while the sum is 36.

The square root of 74347434 is about 8622.4958103788. The cubic root of 74347434 is about 420.4896669835.

The spelling of 74347434 in words is "seventy-four million, three hundred forty-seven thousand, four hundred thirty-four".