424656 has 40 divisors (see below), whose sum is σ = 1220160. Its totient is φ = 141408.

The previous prime is 424639. The next prime is 424661. The reversal of 424656 is 656424.

It is a happy number.

424656 is a `hidden beast` number, since 4 + 2 + 4 + 656 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

424656 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 7 ways as a sum of consecutive naturals, for example, 60 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (30504).

2⁴²⁴⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610080).

424656 is an abundant number, since it is smaller than the sum of its proper divisors (795504).

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

424656 is a wasteful number, since it uses less digits than its factorization.

424656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 988 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 424656 is about 651.6563511545. The cubic root of 424656 is about 75.1644391998.

The spelling of 424656 in words is "four hundred twenty-four thousand, six hundred fifty-six".