74181434 has 16 divisors (see below), whose sum is σ = 117391680. Its totient is φ = 35059680.

The previous prime is 74181433. The next prime is 74181461. The reversal of 74181434 is 43418147.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74181434.

It is not an unprimeable number, because it can be changed into a prime (74181433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17174 + ... + 21054.

It is an arithmetic number, because the mean of its divisors is an integer number (7336980).

Almost surely, 2^74181434 is an apocalyptic number.

74181434 is a deficient number, since it is larger than the sum of its proper divisors (43210246).

74181434 is a wasteful number, since it uses less digits than its factorization.

74181434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405.

The product of its digits is 10752, while the sum is 32.

The square root of 74181434 is about 8612.8644480219. The cubic root of 74181434 is about 420.1764828992.

It can be divided in two parts, 7418143 and 4, that added together give a palindrome (7418147).

The spelling of 74181434 in words is "seventy-four million, one hundred eighty-one thousand, four hundred thirty-four".