9130640 has 40 divisors (see below), whose sum is σ = 22349760. Its totient is φ = 3459456.

The previous prime is 9130633. The next prime is 9130651. The reversal of 9130640 is 460319.

9130640 = T₁₄₇ + T₁₄₈ + ... + T₃₈₆.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (558744).

Almost surely, 2^9130640 is an apocalyptic number.

It is an amenable number.

9130640 is an abundant number, since it is smaller than the sum of its proper divisors (13219120).

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

9130640 is a wasteful number, since it uses less digits than its factorization.

9130640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039 (or 6033 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 9130640 is about 3021.6948886345. The cubic root of 9130640 is about 209.0100038709.

Adding to 9130640 its reverse (460319), we get a palindrome (9590959).

The spelling of 9130640 in words is "nine million, one hundred thirty thousand, six hundred forty".