605240640 has 112 divisors (see below), whose sum is σ = 2135184960. Its totient is φ = 161395200.

The previous prime is 605240633. The next prime is 605240659. The reversal of 605240640 is 46042506.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 26386 + ... + 43665.

Almost surely, 2^605240640 is an apocalyptic number.

605240640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605240640 is an abundant number, since it is smaller than the sum of its proper divisors (1529944320).

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

605240640 is a wasteful number, since it uses less digits than its factorization.

605240640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70077 (or 70061 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 605240640 is about 24601.6389697922. The cubic root of 605240640 is about 845.8811764105.

The spelling of 605240640 in words is "six hundred five million, two hundred forty thousand, six hundred forty".