312400355 has 8 divisors (see below), whose sum is σ = 380160864. Its totient is φ = 246400000.

The previous prime is 312400343. The next prime is 312400357. The reversal of 312400355 is 553004213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312400355 - 2¹⁴ = 312383971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312400355.

It is not an unprimeable number, because it can be changed into a prime (312400357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 439646 + ... + 440355.

It is an arithmetic number, because the mean of its divisors is an integer number (47520108).

Almost surely, 2^312400355 is an apocalyptic number.

312400355 is a deficient number, since it is larger than the sum of its proper divisors (67760509).

312400355 is an equidigital number, since it uses as much as digits as its factorization.

312400355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880077.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 312400355 is about 17674.8509187489. The cubic root of 312400355 is about 678.5322689762.

Adding to 312400355 its reverse (553004213), we get a palindrome (865404568).

The spelling of 312400355 in words is "three hundred twelve million, four hundred thousand, three hundred fifty-five".