604040040 has 96 divisors (see below), whose sum is σ = 1976481000. Its totient is φ = 159982080.

The previous prime is 604040029. The next prime is 604040051. The reversal of 604040040 is 40040406.

It is an interprime number because it is at equal distance from previous prime (604040029) and next prime (604040051).

It can be written as a sum of positive squares in 4 ways, for example, as 538332804 + 65707236 = 23202^2 + 8106^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 604039995 and 604040022.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 48010 + ... + 59270.

Almost surely, 2^604040040 is an apocalyptic number.

604040040 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 604040040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988240500).

604040040 is an abundant number, since it is smaller than the sum of its proper divisors (1372440960).

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

604040040 is a wasteful number, since it uses less digits than its factorization.

604040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11427 (or 11420 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 604040040 is about 24577.2260436364. The cubic root of 604040040 is about 845.3214887256.

Adding to 604040040 its reverse (40040406), we get a palindrome (644080446).

It can be divided in two parts, 60 and 4040040, that added together give a square (4040100 = 2010²).

The spelling of 604040040 in words is "six hundred four million, forty thousand, forty".