300640240 has 40 divisors (see below), whose sum is σ = 740108880. Its totient is φ = 113181696.

The previous prime is 300640237. The next prime is 300640243. The reversal of 300640240 is 42046003.

It is an interprime number because it is at equal distance from previous prime (300640237) and next prime (300640243).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300640243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109170 + ... + 111889.

It is an arithmetic number, because the mean of its divisors is an integer number (18502722).

Almost surely, 2^300640240 is an apocalyptic number.

It is an amenable number.

300640240 is an abundant number, since it is smaller than the sum of its proper divisors (439468640).

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

300640240 is a wasteful number, since it uses less digits than its factorization.

300640240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221089 (or 221083 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 300640240 is about 17338.9803621782. The cubic root of 300640240 is about 669.9088314355.

Adding to 300640240 its reverse (42046003), we get a palindrome (342686243).

The spelling of 300640240 in words is "three hundred million, six hundred forty thousand, two hundred forty".