426434407 has 20 divisors (see below), whose sum is σ = 502880336. Its totient is φ = 361549440.

The previous prime is 426434387. The next prime is 426434413. The reversal of 426434407 is 704434624.

It is not a de Polignac number, because 426434407 - 2⁷ = 426434279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426434497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 231982 + ... + 233812.

Almost surely, 2^426434407 is an apocalyptic number.

426434407 is a deficient number, since it is larger than the sum of its proper divisors (76445929).

426434407 is an frugal number, since it uses more digits than its factorization.

426434407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 34.

The square root of 426434407 is about 20650.2883030722. The cubic root of 426434407 is about 752.6921953638.

The spelling of 426434407 in words is "four hundred twenty-six million, four hundred thirty-four thousand, four hundred seven".