312445434405 has 32 divisors (see below), whose sum is σ = 538781765760. Its totient is φ = 153700934400.

The previous prime is 312445434397. The next prime is 312445434439. The reversal of 312445434405 is 504434544213.

It is not a de Polignac number, because 312445434405 - 2³ = 312445434397 is a prime.

It is a super-3 number, since 3×312445434405³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 362095 + ... + 869484.

It is an arithmetic number, because the mean of its divisors is an integer number (16836930180).

Almost surely, 2^312445434405 is an apocalyptic number.

It is an amenable number.

312445434405 is a deficient number, since it is larger than the sum of its proper divisors (226336331355).

312445434405 is a wasteful number, since it uses less digits than its factorization.

312445434405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232901.

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 312445434405 its reverse (504434544213), we get a palindrome (816879978618).

The spelling of 312445434405 in words is "three hundred twelve billion, four hundred forty-five million, four hundred thirty-four thousand, four hundred five".