654426 has 16 divisors (see below), whose sum is σ = 1454400. Its totient is φ = 218124.

The previous prime is 654421. The next prime is 654427. The reversal of 654426 is 624456.

It is a happy number.

654426 is a `hidden beast` number, since 654 + 4 + 2 + 6 = 666.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 654426.

It is not an unprimeable number, because it can be changed into a prime (654421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6006 + ... + 6113.

It is an arithmetic number, because the mean of its divisors is an integer number (90900).

2⁶⁵⁴⁴²⁶ is an apocalyptic number.

654426 is an abundant number, since it is smaller than the sum of its proper divisors (799974).

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

654426 is a wasteful number, since it uses less digits than its factorization.

654426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130 (or 12124 counting only the distinct ones).

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

The square root of 654426 is about 808.9660067024. The cubic root of 654426 is about 86.8200800168.

The spelling of 654426 in words is "six hundred fifty-four thousand, four hundred twenty-six".