9729404134 has 32 divisors (see below), whose sum is σ = 14888476512. Its totient is φ = 4767840000.

The previous prime is 9729404071. The next prime is 9729404143. The reversal of 9729404134 is 4314049279.

It is a super-2 number, since 2×9729404134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10273449 + ... + 10274395.

It is an arithmetic number, because the mean of its divisors is an integer number (465264891).

Almost surely, 2^9729404134 is an apocalyptic number.

9729404134 is a deficient number, since it is larger than the sum of its proper divisors (5159072378).

9729404134 is a wasteful number, since it uses less digits than its factorization.

9729404134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 9729404134 is about 98637.7419348192. The cubic root of 9729404134 is about 2134.8240221910.

The spelling of 9729404134 in words is "nine billion, seven hundred twenty-nine million, four hundred four thousand, one hundred thirty-four".