9729438 has 24 divisors (see below), whose sum is σ = 19944648. Its totient is φ = 3164112.

The previous prime is 9729427. The next prime is 9729469. The reversal of 9729438 is 8349279.

It is a self number, because there is not a number n which added to its sum of digits gives 9729438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10656 + ... + 11532.

It is an arithmetic number, because the mean of its divisors is an integer number (831027).

Almost surely, 2^9729438 is an apocalyptic number.

9729438 is an abundant number, since it is smaller than the sum of its proper divisors (10215210).

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

9729438 is a wasteful number, since it uses less digits than its factorization.

9729438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 925 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 9729438 is about 3119.2047063314. The cubic root of 9729438 is about 213.4826499145.

The spelling of 9729438 in words is "nine million, seven hundred twenty-nine thousand, four hundred thirty-eight".