74406129 has 16 divisors (see below), whose sum is σ = 113619840. Its totient is φ = 42428160.

The previous prime is 74406121. The next prime is 74406131. The reversal of 74406129 is 92160447.

It is a happy number.

It is not a de Polignac number, because 74406129 - 2³ = 74406121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74406129.

It is not an unprimeable number, because it can be changed into a prime (74406121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7209 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (7101240).

Almost surely, 2^74406129 is an apocalyptic number.

It is an amenable number.

74406129 is a deficient number, since it is larger than the sum of its proper divisors (39213711).

74406129 is a wasteful number, since it uses less digits than its factorization.

74406129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 74406129 is about 8625.8987357840. The cubic root of 74406129 is about 420.6002924064.

The spelling of 74406129 in words is "seventy-four million, four hundred six thousand, one hundred twenty-nine".