1304231140 has 48 divisors (see below), whose sum is σ = 2788248960. Its totient is φ = 512352000.

The previous prime is 1304231119. The next prime is 1304231147. The reversal of 1304231140 is 411324031.

It is not an unprimeable number, because it can be changed into a prime (1304231147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 364681 + ... + 368239.

It is an arithmetic number, because the mean of its divisors is an integer number (58088520).

Almost surely, 2^1304231140 is an apocalyptic number.

1304231140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304231140 is an abundant number, since it is smaller than the sum of its proper divisors (1484017820).

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

1304231140 is a wasteful number, since it uses less digits than its factorization.

1304231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3890 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1304231140 is about 36114.1404438760. The cubic root of 1304231140 is about 1092.5756613166.

Adding to 1304231140 its reverse (411324031), we get a palindrome (1715555171).

The spelling of 1304231140 in words is "one billion, three hundred four million, two hundred thirty-one thousand, one hundred forty".