1315873240 has 64 divisors (see below), whose sum is σ = 3370325760. Its totient is φ = 457691520.

The previous prime is 1315873211. The next prime is 1315873243. The reversal of 1315873240 is 423785131.

It is a junction number, because it is equal to n+sod(n) for n = 1315873196 and 1315873205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315873243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54894 + ... + 75133.

It is an arithmetic number, because the mean of its divisors is an integer number (52661340).

Almost surely, 2^1315873240 is an apocalyptic number.

1315873240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315873240 is an abundant number, since it is smaller than the sum of its proper divisors (2054452520).

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

1315873240 is a wasteful number, since it uses less digits than its factorization.

1315873240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130072 (or 130068 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1315873240 is about 36274.9671261050. The cubic root of 1315873240 is about 1095.8169615479.

The spelling of 1315873240 in words is "one billion, three hundred fifteen million, eight hundred seventy-three thousand, two hundred forty".