1304251240 has 16 divisors (see below), whose sum is σ = 2934565380. Its totient is φ = 521700480.

The previous prime is 1304251231. The next prime is 1304251241. The reversal of 1304251240 is 421524031.

It can be written as a sum of positive squares in 2 ways, for example, as 1216753924 + 87497316 = 34882^2 + 9354^2 .

It is not an unprimeable number, because it can be changed into a prime (1304251241) 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 3 ways as a sum of consecutive naturals, for example, 16303101 + ... + 16303180.

Almost surely, 2^1304251240 is an apocalyptic number.

1304251240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304251240 is an abundant number, since it is smaller than the sum of its proper divisors (1630314140).

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

1304251240 is a wasteful number, since it uses less digits than its factorization.

1304251240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32606292 (or 32606288 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1304251240 is about 36114.4187271511. The cubic root of 1304251240 is about 1092.5812739869.

Adding to 1304251240 its reverse (421524031), we get a palindrome (1725775271).

The spelling of 1304251240 in words is "one billion, three hundred four million, two hundred fifty-one thousand, two hundred forty".