8645340 has 48 divisors (see below), whose sum is σ = 26409600. Its totient is φ = 2095680.

The previous prime is 8645327. The next prime is 8645341. The reversal of 8645340 is 435468.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8645298 and 8645307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8645341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5890 + ... + 7209.

It is an arithmetic number, because the mean of its divisors is an integer number (550200).

Almost surely, 2^8645340 is an apocalyptic number.

It is an amenable number.

8645340 is an abundant number, since it is smaller than the sum of its proper divisors (17764260).

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

8645340 is a wasteful number, since it uses less digits than its factorization.

8645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122 (or 13120 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 8645340 is about 2940.2959034764. The cubic root of 8645340 is about 205.2393793002.

The spelling of 8645340 in words is "eight million, six hundred forty-five thousand, three hundred forty".