1315242684 has 120 divisors (see below), whose sum is σ = 4065193440. Its totient is φ = 362807424.

The previous prime is 1315242671. The next prime is 1315242703. The reversal of 1315242684 is 4862425131.

It is a happy number.

1315242684 is a `hidden beast` number, since 1 + 3 + 152 + 426 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55774 + ... + 75770.

It is an arithmetic number, because the mean of its divisors is an integer number (33876612).

Almost surely, 2^1315242684 is an apocalyptic number.

1315242684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315242684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032596720).

1315242684 is an abundant number, since it is smaller than the sum of its proper divisors (2749950756).

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

1315242684 is a wasteful number, since it uses less digits than its factorization.

1315242684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20049 (or 20038 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 1315242684 is about 36266.2747466568. The cubic root of 1315242684 is about 1095.6418979885.

The spelling of 1315242684 in words is "one billion, three hundred fifteen million, two hundred forty-two thousand, six hundred eighty-four".