605440988 has 12 divisors (see below), whose sum is σ = 1060049760. Its totient is φ = 302569632.

The previous prime is 605440987. The next prime is 605441003. The reversal of 605440988 is 889044506.

It is a happy number.

It is a super-2 number, since 2×605440988² = 733117579900832288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605440987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28433 + ... + 44936.

It is an arithmetic number, because the mean of its divisors is an integer number (88337480).

Almost surely, 2^605440988 is an apocalyptic number.

It is an amenable number.

605440988 is a deficient number, since it is larger than the sum of its proper divisors (454608772).

605440988 is a wasteful number, since it uses less digits than its factorization.

605440988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75436 (or 75434 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 605440988 is about 24605.7104754161. The cubic root of 605440988 is about 845.9745012220.

The spelling of 605440988 in words is "six hundred five million, four hundred forty thousand, nine hundred eighty-eight".