9720104540 has 24 divisors (see below), whose sum is σ = 20526261840. Its totient is φ = 3866319488.

The previous prime is 9720104507. The next prime is 9720104567. The reversal of 9720104540 is 454010279.

It is a happy number.

It is a super-2 number, since 2×9720104540² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9720104497 and 9720104506.

It is a congruent number.

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, 1353977 + ... + 1361136.

It is an arithmetic number, because the mean of its divisors is an integer number (855260910).

Almost surely, 2^9720104540 is an apocalyptic number.

It is an amenable number.

9720104540 is an abundant number, since it is smaller than the sum of its proper divisors (10806157300).

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

9720104540 is a wasteful number, since it uses less digits than its factorization.

9720104540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715301 (or 2715299 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 9720104540 is about 98590.5905246540. The cubic root of 9720104540 is about 2134.1436336466.

The spelling of 9720104540 in words is "nine billion, seven hundred twenty million, one hundred four thousand, five hundred forty".