426143434 has 4 divisors (see below), whose sum is σ = 639215154. Its totient is φ = 213071716.

The previous prime is 426143363. The next prime is 426143441. The reversal of 426143434 is 434341624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 411968209 + 14175225 = 20297^2 + 3765^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 426143396 and 426143405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106535857 + ... + 106535860.

Almost surely, 2^426143434 is an apocalyptic number.

426143434 is a deficient number, since it is larger than the sum of its proper divisors (213071720).

426143434 is a wasteful number, since it uses less digits than its factorization.

426143434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213071719.

The product of its digits is 27648, while the sum is 31.

The square root of 426143434 is about 20643.2418481207. The cubic root of 426143434 is about 752.5209592290.

The spelling of 426143434 in words is "four hundred twenty-six million, one hundred forty-three thousand, four hundred thirty-four".