426520 has 16 divisors (see below), whose sum is σ = 959760. Its totient is φ = 170592.

The previous prime is 426487. The next prime is 426527. The reversal of 426520 is 25624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426527) by changing a digit.

426520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5292 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (59985).

2⁴²⁶⁵²⁰ is an apocalyptic number.

426520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426520 is an abundant number, since it is smaller than the sum of its proper divisors (533240).

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

426520 is a wasteful number, since it uses less digits than its factorization.

426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10674 (or 10670 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 426520 is about 653.0849868126. The cubic root of 426520 is about 75.2742551583.

It can be divided in two parts, 426 and 520, that added together give a triangular number (946 = T₄₃).

The spelling of 426520 in words is "four hundred twenty-six thousand, five hundred twenty".