426312805 has 8 divisors (see below), whose sum is σ = 513026712. Its totient is φ = 340082688.

The previous prime is 426312781. The next prime is 426312827. The reversal of 426312805 is 508213624.

It can be written as a sum of positive squares in 4 ways, for example, as 4955076 + 421357729 = 2226^2 + 20527^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 426312805 - 2¹⁵ = 426280037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119004 + ... + 122533.

It is an arithmetic number, because the mean of its divisors is an integer number (64128339).

Almost surely, 2^426312805 is an apocalyptic number.

It is an amenable number.

426312805 is a deficient number, since it is larger than the sum of its proper divisors (86713907).

426312805 is a wasteful number, since it uses less digits than its factorization.

426312805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241895.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 426312805 is about 20647.3437758952. The cubic root of 426312805 is about 752.6206426808.

The spelling of 426312805 in words is "four hundred twenty-six million, three hundred twelve thousand, eight hundred five".