315340440 has 32 divisors (see below), whose sum is σ = 946021680. Its totient is φ = 84090752.

The previous prime is 315340433. The next prime is 315340447. The reversal of 315340440 is 44043513.

It is an interprime number because it is at equal distance from previous prime (315340433) and next prime (315340447).

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 315340440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315340447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313799 + ... + 1314038.

Almost surely, 2^315340440 is an apocalyptic number.

315340440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315340440 is an abundant number, since it is smaller than the sum of its proper divisors (630681240).

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

315340440 is a wasteful number, since it uses less digits than its factorization.

315340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627851 (or 2627847 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 315340440 is about 17757.8275698352. The cubic root of 315340440 is about 680.6542434613.

Adding to 315340440 its reverse (44043513), we get a palindrome (359383953).

The spelling of 315340440 in words is "three hundred fifteen million, three hundred forty thousand, four hundred forty".