8409740 has 24 divisors (see below), whose sum is σ = 17757600. Its totient is φ = 3345408.

The previous prime is 8409721. The next prime is 8409829. The reversal of 8409740 is 479048.

It is a happy number.

8409740 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8409697 and 8409706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (739900).

Almost surely, 2^8409740 is an apocalyptic number.

It is an amenable number.

8409740 is an abundant number, since it is smaller than the sum of its proper divisors (9347860).

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

8409740 is a wasteful number, since it uses less digits than its factorization.

8409740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8409740 is about 2899.9551720673. The cubic root of 8409740 is about 203.3578100667.

The spelling of 8409740 in words is "eight million, four hundred nine thousand, seven hundred forty".