312305430 has 16 divisors (see below), whose sum is σ = 749533104. Its totient is φ = 83281440.

The previous prime is 312305429. The next prime is 312305473. The reversal of 312305430 is 34503213.

It is a junction number, because it is equal to n+sod(n) for n = 312305397 and 312305406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205061 + ... + 5205120.

It is an arithmetic number, because the mean of its divisors is an integer number (46845819).

Almost surely, 2^312305430 is an apocalyptic number.

312305430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312305430 is an abundant number, since it is smaller than the sum of its proper divisors (437227674).

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

312305430 is a wasteful number, since it uses less digits than its factorization.

312305430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10410191.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 312305430 is about 17672.1654021232. The cubic root of 312305430 is about 678.4635364460.

Adding to 312305430 its reverse (34503213), we get a palindrome (346808643).

The spelling of 312305430 in words is "three hundred twelve million, three hundred five thousand, four hundred thirty".