605685444 has 96 divisors (see below), whose sum is σ = 1779993600. Its totient is φ = 156014208.

The previous prime is 605685419. The next prime is 605685481. The reversal of 605685444 is 444586506.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 605685396 and 605685405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40507 + ... + 53405.

It is an arithmetic number, because the mean of its divisors is an integer number (18541600).

Almost surely, 2^605685444 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 605685444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889996800).

605685444 is an abundant number, since it is smaller than the sum of its proper divisors (1174308156).

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

605685444 is a wasteful number, since it uses less digits than its factorization.

605685444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12969 (or 12967 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The square root of 605685444 is about 24610.6774388679. The cubic root of 605685444 is about 846.0883442552.

The spelling of 605685444 in words is "six hundred five million, six hundred eighty-five thousand, four hundred forty-four".