304005021140 has 24 divisors (see below), whose sum is σ = 641150513640. Its totient is φ = 121080109568.

The previous prime is 304005021139. The next prime is 304005021157. The reversal of 304005021140 is 41120500403.

It can be written as a sum of positive squares in 4 ways, for example, as 67509550276 + 236495470864 = 259826^2 + 486308^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 32613905 + ... + 32623224.

It is an arithmetic number, because the mean of its divisors is an integer number (26714604735).

Almost surely, 2^304005021140 is an apocalyptic number.

It is an amenable number.

304005021140 is an abundant number, since it is smaller than the sum of its proper divisors (337145492500).

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

304005021140 is a wasteful number, since it uses less digits than its factorization.

304005021140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65237371 (or 65237369 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 304005021140 its reverse (41120500403), we get a palindrome (345125521543).

The spelling of 304005021140 in words is "three hundred four billion, five million, twenty-one thousand, one hundred forty".