9129740 has 24 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 3640448.

The previous prime is 9129739. The next prime is 9129761. The reversal of 9129740 is 479219.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9129697 and 9129706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9104 + ... + 10056.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^9129740 is an apocalyptic number.

It is an amenable number.

9129740 is an abundant number, since it is smaller than the sum of its proper divisors (10102900).

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

9129740 is a wasteful number, since it uses less digits than its factorization.

9129740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9129740 is about 3021.5459619208. The cubic root of 9129740 is about 209.0031363280.

The spelling of 9129740 in words is "nine million, one hundred twenty-nine thousand, seven hundred forty".