9642540 has 24 divisors (see below), whose sum is σ = 26999280. Its totient is φ = 2571328.

The previous prime is 9642499. The next prime is 9642541. The reversal of 9642540 is 452469.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9642498 and 9642507.

It is not an unprimeable number, because it can be changed into a prime (9642541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80295 + ... + 80414.

It is an arithmetic number, because the mean of its divisors is an integer number (1124970).

Almost surely, 2^9642540 is an apocalyptic number.

It is an amenable number.

9642540 is an abundant number, since it is smaller than the sum of its proper divisors (17356740).

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

9642540 is a wasteful number, since it uses less digits than its factorization.

9642540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160721 (or 160719 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 9642540 is about 3105.2439517693. The cubic root of 9642540 is about 212.8451783306.

The spelling of 9642540 in words is "nine million, six hundred forty-two thousand, five hundred forty".