304142312440 has 32 divisors (see below), whose sum is σ = 685522926000. Its totient is φ = 121443107584.

The previous prime is 304142312407. The next prime is 304142312459. The reversal of 304142312440 is 44213241403.

It is a junction number, because it is equal to n+sod(n) for n = 304142312399 and 304142312408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6658750 + ... + 6704269.

Almost surely, 2^304142312440 is an apocalyptic number.

It is an amenable number.

304142312440 is an abundant number, since it is smaller than the sum of its proper divisors (381380613560).

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

304142312440 is a wasteful number, since it uses less digits than its factorization.

304142312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13363599 (or 13363595 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 304142312440 its reverse (44213241403), we get a palindrome (348355553843).

The spelling of 304142312440 in words is "three hundred four billion, one hundred forty-two million, three hundred twelve thousand, four hundred forty".