426810 has 32 divisors (see below), whose sum is σ = 1052352. Its totient is φ = 110720.

The previous prime is 426799. The next prime is 426841. The reversal of 426810 is 18624.

It is a super-2 number, since 2×426810² = 364333552200, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (32886).

2⁴²⁶⁸¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526176).

426810 is an abundant number, since it is smaller than the sum of its proper divisors (625542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426810 is a wasteful number, since it uses less digits than its factorization.

426810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 426810 is about 653.3069722573. The cubic root of 426810 is about 75.2913114811.

Subtracting from 426810 its product of nonzero digits (384), we obtain a triangular number (426426 = T₉₂₃).

It can be divided in two parts, 4268 and 10, that added together give a triangular number (4278 = T₉₂).

The spelling of 426810 in words is "four hundred twenty-six thousand, eight hundred ten".