426434 has 4 divisors (see below), whose sum is σ = 639654. Its totient is φ = 213216.

The previous prime is 426427. The next prime is 426469. The reversal of 426434 is 434624.

It is a happy number.

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., 426409 + 25 = 653^2 + 5^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106607 + ... + 106610.

2⁴²⁶⁴³⁴ is an apocalyptic number.

426434 is a deficient number, since it is larger than the sum of its proper divisors (213220).

426434 is a wasteful number, since it uses less digits than its factorization.

426434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213219.

The product of its digits is 2304, while the sum is 23.

The square root of 426434 is about 653.0191421390. The cubic root of 426434 is about 75.2691955901.

The spelling of 426434 in words is "four hundred twenty-six thousand, four hundred thirty-four".