604286640 has 240 divisors, whose sum is σ = 2157242880. Its totient is φ = 151165440.

The previous prime is 604286629. The next prime is 604286647. The reversal of 604286640 is 46682406.

It is a happy number.

604286640 is a `hidden beast` number, since 6 + 0 + 4 + 2 + 8 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 604286595 and 604286604.

It is not an unprimeable number, because it can be changed into a prime (604286647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2229705 + ... + 2229975.

It is an arithmetic number, because the mean of its divisors is an integer number (8988512).

Almost surely, 2^604286640 is an apocalyptic number.

604286640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 604286640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078621440).

604286640 is an abundant number, since it is smaller than the sum of its proper divisors (1552956240).

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

604286640 is a wasteful number, since it uses less digits than its factorization.

604286640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 604286640 is about 24582.2423712728. The cubic root of 604286640 is about 845.4365075457.

The spelling of 604286640 in words is "six hundred four million, two hundred eighty-six thousand, six hundred forty".