312404680 has 32 divisors (see below), whose sum is σ = 803327040. Its totient is φ = 107110080.

The previous prime is 312404671. The next prime is 312404681. The reversal of 312404680 is 86404213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (312404681) 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, 557586 + ... + 558145.

It is an arithmetic number, because the mean of its divisors is an integer number (25103970).

Almost surely, 2^312404680 is an apocalyptic number.

It is an amenable number.

312404680 is an abundant number, since it is smaller than the sum of its proper divisors (490922360).

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

312404680 is a wasteful number, since it uses less digits than its factorization.

312404680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115749 (or 1115745 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 312404680 is about 17674.9732673065. The cubic root of 312404680 is about 678.5354002557.

Adding to 312404680 its reverse (86404213), we get a palindrome (398808893).

The spelling of 312404680 in words is "three hundred twelve million, four hundred four thousand, six hundred eighty".