1310500240 has 40 divisors (see below), whose sum is σ = 3482187840. Its totient is φ = 449314176.

The previous prime is 1310500237. The next prime is 1310500259. The reversal of 1310500240 is 420050131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1169530 + ... + 1170649.

It is an arithmetic number, because the mean of its divisors is an integer number (87054696).

Almost surely, 2^1310500240 is an apocalyptic number.

1310500240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310500240 is an abundant number, since it is smaller than the sum of its proper divisors (2171687600).

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

1310500240 is a wasteful number, since it uses less digits than its factorization.

1310500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340199 (or 2340193 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1310500240 is about 36200.8320346370. The cubic root of 1310500240 is about 1094.3234396430.

Adding to 1310500240 its reverse (420050131), we get a palindrome (1730550371).

The spelling of 1310500240 in words is "one billion, three hundred ten million, five hundred thousand, two hundred forty".