312304452240 has 80 divisors (see below), whose sum is σ = 1056156883776. Its totient is φ = 75710169600.

The previous prime is 312304452217. The next prime is 312304452269. The reversal of 312304452240 is 42254403213.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 312304452198 and 312304452207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59145931 + ... + 59151210.

Almost surely, 2^312304452240 is an apocalyptic number.

312304452240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312304452240 is an abundant number, since it is smaller than the sum of its proper divisors (743852431536).

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

312304452240 is a wasteful number, since it uses less digits than its factorization.

312304452240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118297168 (or 118297162 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 312304452240 its reverse (42254403213), we get a palindrome (354558855453).

The spelling of 312304452240 in words is "three hundred twelve billion, three hundred four million, four hundred fifty-two thousand, two hundred forty".