8318740 has 12 divisors (see below), whose sum is σ = 17469396. Its totient is φ = 3327488.

The previous prime is 8318711. The next prime is 8318759. The reversal of 8318740 is 478138.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 3984016 = 2082^2 + 1996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207949 + ... + 207988.

It is an arithmetic number, because the mean of its divisors is an integer number (1455783).

Almost surely, 2^8318740 is an apocalyptic number.

It is an amenable number.

8318740 is an abundant number, since it is smaller than the sum of its proper divisors (9150656).

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

8318740 is a wasteful number, since it uses less digits than its factorization.

8318740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415946 (or 415944 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 8318740 is about 2884.2225988991. Note that the first 3 decimals coincide. The cubic root of 8318740 is about 202.6216512344.

The spelling of 8318740 in words is "eight million, three hundred eighteen thousand, seven hundred forty".