74129070 has 32 divisors (see below), whose sum is σ = 187274880. Its totient is φ = 18727200.

The previous prime is 74129063. The next prime is 74129087. The reversal of 74129070 is 7092147.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64456 + ... + 65595.

It is an arithmetic number, because the mean of its divisors is an integer number (5852340).

Almost surely, 2^74129070 is an apocalyptic number.

74129070 is an abundant number, since it is smaller than the sum of its proper divisors (113145810).

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

74129070 is a wasteful number, since it uses less digits than its factorization.

74129070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130080.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 74129070 is about 8609.8240400138. The cubic root of 74129070 is about 420.0775933738.

The spelling of 74129070 in words is "seventy-four million, one hundred twenty-nine thousand, seventy".