426429 has 6 divisors (see below), whose sum is σ = 615966. Its totient is φ = 284280.

The previous prime is 426427. The next prime is 426469. The reversal of 426429 is 924624.

It can be written as a sum of positive squares in only one way, i.e., 416025 + 10404 = 645^2 + 102^2 .

It is not a de Polignac number, because 426429 - 2¹ = 426427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23682 + ... + 23699.

It is an arithmetic number, because the mean of its divisors is an integer number (102661).

2⁴²⁶⁴²⁹ is an apocalyptic number.

It is an amenable number.

426429 is a deficient number, since it is larger than the sum of its proper divisors (189537).

426429 is a wasteful number, since it uses less digits than its factorization.

426429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47387 (or 47384 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 426429 is about 653.0153137561. The cubic root of 426429 is about 75.2689014082.

The spelling of 426429 in words is "four hundred twenty-six thousand, four hundred twenty-nine".