426261 has 8 divisors (see below), whose sum is σ = 620064. Its totient is φ = 258320.

The previous prime is 426253. The next prime is 426287. The reversal of 426261 is 162624.

It is a happy number.

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 426261 - 2³ = 426253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426211) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6426 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (77508).

2⁴²⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

426261 is a deficient number, since it is larger than the sum of its proper divisors (193803).

426261 is a wasteful number, since it uses less digits than its factorization.

426261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12931.

The product of its digits is 576, while the sum is 21.

The square root of 426261 is about 652.8866670411. The cubic root of 426261 is about 75.2590155605.

Adding to 426261 its reverse (162624), we get a palindrome (588885).

The spelling of 426261 in words is "four hundred twenty-six thousand, two hundred sixty-one".