1316250240 has 64 divisors (see below), whose sum is σ = 4195553760. Its totient is φ = 350999552.

The previous prime is 1316250217. The next prime is 1316250307. The reversal of 1316250240 is 420526131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1316250240.

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, 340854 + ... + 344693.

Almost surely, 2^1316250240 is an apocalyptic number.

1316250240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316250240 is an abundant number, since it is smaller than the sum of its proper divisors (2879303520).

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

1316250240 is an equidigital number, since it uses as much as digits as its factorization.

1316250240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685569 (or 685557 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1316250240 is about 36280.1631749362. The cubic root of 1316250240 is about 1095.9216027181.

Adding to 1316250240 its reverse (420526131), we get a palindrome (1736776371).

The spelling of 1316250240 in words is "one billion, three hundred sixteen million, two hundred fifty thousand, two hundred forty".