312040355 has 32 divisors (see below), whose sum is σ = 436700160. Its totient is φ = 211525120.

The previous prime is 312040349. The next prime is 312040387. The reversal of 312040355 is 553040213.

It is not a de Polignac number, because 312040355 - 2⁶ = 312040291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312040355.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98486 + ... + 101604.

It is an arithmetic number, because the mean of its divisors is an integer number (13646880).

Almost surely, 2^312040355 is an apocalyptic number.

312040355 is a deficient number, since it is larger than the sum of its proper divisors (124659805).

312040355 is a wasteful number, since it uses less digits than its factorization.

312040355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259.

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

The square root of 312040355 is about 17664.6640217130. The cubic root of 312040355 is about 678.2715292947.

Adding to 312040355 its reverse (553040213), we get a palindrome (865080568).

The spelling of 312040355 in words is "three hundred twelve million, forty thousand, three hundred fifty-five".