1304502240 has 48 divisors (see below), whose sum is σ = 4109183568. Its totient is φ = 347867136.

The previous prime is 1304502193. The next prime is 1304502257. The reversal of 1304502240 is 422054031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358377 + ... + 1359336.

It is an arithmetic number, because the mean of its divisors is an integer number (85607991).

Almost surely, 2^1304502240 is an apocalyptic number.

1304502240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304502240 is an abundant number, since it is smaller than the sum of its proper divisors (2804681328).

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

1304502240 is a wasteful number, since it uses less digits than its factorization.

1304502240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717731 (or 2717723 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1304502240 is about 36117.8936262900. The cubic root of 1304502240 is about 1092.6513577001.

Adding to 1304502240 its reverse (422054031), we get a palindrome (1726556271).

The spelling of 1304502240 in words is "one billion, three hundred four million, five hundred two thousand, two hundred forty".