5656940 has 12 divisors (see below), whose sum is σ = 11879616. Its totient is φ = 2262768.

The previous prime is 5656933. The next prime is 5656949. The reversal of 5656940 is 496565.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5656940.

It is not an unprimeable number, because it can be changed into a prime (5656949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 141404 + ... + 141443.

It is an arithmetic number, because the mean of its divisors is an integer number (989968).

Almost surely, 2^5656940 is an apocalyptic number.

It is an amenable number.

5656940 is an abundant number, since it is smaller than the sum of its proper divisors (6222676).

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

5656940 is a wasteful number, since it uses less digits than its factorization.

5656940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282856 (or 282854 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5656940 is about 2378.4322567607. The cubic root of 5656940 is about 178.1806439474.

The spelling of 5656940 in words is "five million, six hundred fifty-six thousand, nine hundred forty".