74081429 has 4 divisors (see below), whose sum is σ = 74153100. Its totient is φ = 74009760.

The previous prime is 74081347. The next prime is 74081443. The reversal of 74081429 is 92418047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92418047 = 1747 ⋅52901.

It can be written as a sum of positive squares in 2 ways, for example, as 65642404 + 8439025 = 8102^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 74081429 - 2²⁰ = 73032853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74081479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34262 + ... + 36359.

It is an arithmetic number, because the mean of its divisors is an integer number (18538275).

Almost surely, 2^74081429 is an apocalyptic number.

It is an amenable number.

74081429 is a deficient number, since it is larger than the sum of its proper divisors (71671).

74081429 is a wasteful number, since it uses less digits than its factorization.

74081429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71670.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 74081429 is about 8607.0569302172. The cubic root of 74081429 is about 419.9875827773.

The spelling of 74081429 in words is "seventy-four million, eighty-one thousand, four hundred twenty-nine".