604257840 has 160 divisors (see below), whose sum is σ = 2172003840. Its totient is φ = 154116864.

The previous prime is 604257811. The next prime is 604257847. The reversal of 604257840 is 48752406.

604257840 is a `hidden beast` number, since 6 + 0 + 42 + 578 + 40 = 666.

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 = 604257795 and 604257804.

It is not an unprimeable number, because it can be changed into a prime (604257847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43599 + ... + 55761.

It is an arithmetic number, because the mean of its divisors is an integer number (13575024).

Almost surely, 2^604257840 is an apocalyptic number.

604257840 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 604257840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086001920).

604257840 is an abundant number, since it is smaller than the sum of its proper divisors (1567746000).

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

604257840 is a wasteful number, since it uses less digits than its factorization.

604257840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208 (or 12196 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 604257840 is about 24581.6565755850. The cubic root of 604257840 is about 845.4230763048.

It can be divided in two parts, 60425 and 7840, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 604257840 in words is "six hundred four million, two hundred fifty-seven thousand, eight hundred forty".