8303940 has 36 divisors (see below), whose sum is σ = 25189164. Its totient is φ = 2214336.

The previous prime is 8303929. The next prime is 8303941. The reversal of 8303940 is 493038.

It can be written as a sum of positive squares in 2 ways, for example, as 3944196 + 4359744 = 1986^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8303941) 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 11 ways as a sum of consecutive naturals, for example, 22887 + ... + 23246.

It is an arithmetic number, because the mean of its divisors is an integer number (699699).

Almost surely, 2^8303940 is an apocalyptic number.

It is an amenable number.

8303940 is an abundant number, since it is smaller than the sum of its proper divisors (16885224).

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

8303940 is a wasteful number, since it uses less digits than its factorization.

8303940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46148 (or 46143 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 8303940 is about 2881.6557740299. The cubic root of 8303940 is about 202.5014174569.

Adding to 8303940 its reverse (493038), we get a palindrome (8796978).

The spelling of 8303940 in words is "eight million, three hundred three thousand, nine hundred forty".