605000000 has 168 divisors, whose sum is σ = 1649507496. Its totient is φ = 220000000.

The previous prime is 604999979. The next prime is 605000003. The reversal of 605000000 is 506.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 4 ways, for example, as 598487296 + 6512704 = 24464^2 + 2552^2 .

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605000003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54999995 + ... + 55000005.

It is an arithmetic number, because the mean of its divisors is an integer number (9818497).

Almost surely, 2^605000000 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 605000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824753748).

605000000 is an abundant number, since it is smaller than the sum of its proper divisors (1044507496).

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

605000000 is an frugal number, since it uses more digits than its factorization.

605000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 605000000 is about 24596.7477524977. The cubic root of 605000000 is about 845.7690558115.

Adding to 605000000 its reverse (506), we get a palindrome (605000506).

The spelling of 605000000 in words is "six hundred five million", and thus it is an aban number.