315511340 has 24 divisors (see below), whose sum is σ = 697446960. Its totient is φ = 119562048.

The previous prime is 315511297. The next prime is 315511349. The reversal of 315511340 is 43115513.

It is not an unprimeable number, because it can be changed into a prime (315511349) by changing a digit.

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, 414767 + ... + 415526.

It is an arithmetic number, because the mean of its divisors is an integer number (29060290).

Almost surely, 2^315511340 is an apocalyptic number.

It is an amenable number.

315511340 is an abundant number, since it is smaller than the sum of its proper divisors (381935620).

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

315511340 is a wasteful number, since it uses less digits than its factorization.

315511340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830321 (or 830319 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 315511340 is about 17762.6388805267. The cubic root of 315511340 is about 680.7771823423. Note that the first 3 decimals are identical.

Adding to 315511340 its reverse (43115513), we get a palindrome (358626853).

The spelling of 315511340 in words is "three hundred fifteen million, five hundred eleven thousand, three hundred forty".