605657140 has 24 divisors (see below), whose sum is σ = 1387505952. Its totient is φ = 220238880.

The previous prime is 605657093. The next prime is 605657159. The reversal of 605657140 is 41756506.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 605657096 and 605657105.

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 7 ways as a sum of consecutive naturals, for example, 1376274 + ... + 1376713.

It is an arithmetic number, because the mean of its divisors is an integer number (57812748).

Almost surely, 2^605657140 is an apocalyptic number.

It is an amenable number.

605657140 is an abundant number, since it is smaller than the sum of its proper divisors (781848812).

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

605657140 is a wasteful number, since it uses less digits than its factorization.

605657140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753007 (or 2753005 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 605657140 is about 24610.1023971864. The cubic root of 605657140 is about 846.0751646652.

The spelling of 605657140 in words is "six hundred five million, six hundred fifty-seven thousand, one hundred forty".