426312999 has 24 divisors (see below), whose sum is σ = 704337920. Its totient is φ = 243405648.

The previous prime is 426312967. The next prime is 426313007. The reversal of 426312999 is 999213624.

It is a happy number.

426312999 is a `hidden beast` number, since 4 + 2 + 631 + 2 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 426312999 - 2⁵ = 426312967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426317999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108894 + ... + 112740.

Almost surely, 2^426312999 is an apocalyptic number.

426312999 is a deficient number, since it is larger than the sum of its proper divisors (278024921).

426312999 is a wasteful number, since it uses less digits than its factorization.

426312999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5616 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 426312999 is about 20647.3484738356. The cubic root of 426312999 is about 752.6207568446.

The spelling of 426312999 in words is "four hundred twenty-six million, three hundred twelve thousand, nine hundred ninety-nine".