315021480 has 64 divisors (see below), whose sum is σ = 946814400. Its totient is φ = 83850240.

The previous prime is 315021479. The next prime is 315021481. The reversal of 315021480 is 84120513.

It is an interprime number because it is at equal distance from previous prime (315021479) and next prime (315021481).

It is a super-2 number, since 2×315021480² = 198477065722780800, which contains 22 as substring.

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 315021480.

It is not an unprimeable number, because it can be changed into a prime (315021481) 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 15 ways as a sum of consecutive naturals, for example, 72160 + ... + 76400.

It is an arithmetic number, because the mean of its divisors is an integer number (14793975).

Almost surely, 2^315021480 is an apocalyptic number.

315021480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315021480 is an abundant number, since it is smaller than the sum of its proper divisors (631792920).

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

315021480 is a wasteful number, since it uses less digits than its factorization.

315021480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4870 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 315021480 is about 17748.8444694296. The cubic root of 315021480 is about 680.4246770532.

Adding to 315021480 its reverse (84120513), we get a palindrome (399141993).

The spelling of 315021480 in words is "three hundred fifteen million, twenty-one thousand, four hundred eighty".