1315330040 has 32 divisors (see below), whose sum is σ = 2961150480. Its totient is φ = 525837312.

The previous prime is 1315330039. The next prime is 1315330063. The reversal of 1315330040 is 400335131.

It is a happy number.

It is a super-2 number, since 2×1315330040² = 3460186228252803200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1315329994 and 1315330021.

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, 71912 + ... + 88328.

Almost surely, 2^1315330040 is an apocalyptic number.

1315330040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315330040 is an abundant number, since it is smaller than the sum of its proper divisors (1645820440).

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

1315330040 is a wasteful number, since it uses less digits than its factorization.

1315330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18431 (or 18427 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1315330040 is about 36267.4790962923. The cubic root of 1315330040 is about 1095.6661542914. Note that the first 3 decimals are identical.

Adding to 1315330040 its reverse (400335131), we get a palindrome (1715665171).

The spelling of 1315330040 in words is "one billion, three hundred fifteen million, three hundred thirty thousand, forty".