304220222440 has 32 divisors (see below), whose sum is σ = 687359520000. Its totient is φ = 121178929984.

The previous prime is 304220222387. The next prime is 304220222461. The reversal of 304220222440 is 44222022403.

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, 15901540 + ... + 15920659.

It is an arithmetic number, because the mean of its divisors is an integer number (21479985000).

Almost surely, 2^304220222440 is an apocalyptic number.

It is an amenable number.

304220222440 is an abundant number, since it is smaller than the sum of its proper divisors (383139297560).

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

304220222440 is a wasteful number, since it uses less digits than its factorization.

304220222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31822449 (or 31822445 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 304220222440 its reverse (44222022403), we get a palindrome (348442244843).

The spelling of 304220222440 in words is "three hundred four billion, two hundred twenty million, two hundred twenty-two thousand, four hundred forty".