312534380 has 12 divisors (see below), whose sum is σ = 656322240. Its totient is φ = 125013744.

The previous prime is 312534379. The next prime is 312534413. The reversal of 312534380 is 83435213.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7813340 + ... + 7813379.

It is an arithmetic number, because the mean of its divisors is an integer number (54693520).

Almost surely, 2^312534380 is an apocalyptic number.

It is an amenable number.

312534380 is an abundant number, since it is smaller than the sum of its proper divisors (343787860).

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

312534380 is a wasteful number, since it uses less digits than its factorization.

312534380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15626728 (or 15626726 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 312534380 is about 17678.6419161654. The cubic root of 312534380 is about 678.6292890169.

Adding to 312534380 its reverse (83435213), we get a palindrome (395969593).

The spelling of 312534380 in words is "three hundred twelve million, five hundred thirty-four thousand, three hundred eighty".