312343400 has 48 divisors (see below), whose sum is σ = 743107200. Its totient is φ = 122028480.

The previous prime is 312343399. The next prime is 312343411. The reversal of 312343400 is 4343213.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 11 ways as a sum of consecutive naturals, for example, 9560 + ... + 26759.

It is an arithmetic number, because the mean of its divisors is an integer number (15481400).

Almost surely, 2^312343400 is an apocalyptic number.

It is an amenable number.

312343400 is an abundant number, since it is smaller than the sum of its proper divisors (430763800).

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

312343400 is a wasteful number, since it uses less digits than its factorization.

312343400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36378 (or 36369 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 312343400 is about 17673.2396577424. The cubic root of 312343400 is about 678.4910311291.

Adding to 312343400 its reverse (4343213), we get a palindrome (316686613).

The spelling of 312343400 in words is "three hundred twelve million, three hundred forty-three thousand, four hundred".