5656938 has 24 divisors (see below), whose sum is σ = 12965472. Its totient is φ = 1611864.

The previous prime is 5656933. The next prime is 5656949. The reversal of 5656938 is 8396565.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5656938.

It is not an unprimeable number, because it can be changed into a prime (5656933) 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 11 ways as a sum of consecutive naturals, for example, 15231 + ... + 15597.

It is an arithmetic number, because the mean of its divisors is an integer number (540228).

Almost surely, 2^5656938 is an apocalyptic number.

5656938 is an abundant number, since it is smaller than the sum of its proper divisors (7308534).

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

5656938 is an equidigital number, since it uses as much as digits as its factorization.

5656938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 379 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 5656938 is about 2378.4318363157. The cubic root of 5656938 is about 178.1806229490.

Multiplying 5656938 by its sum of digits (42), we get a square (237591396 = 15414²).

5656938 divided by its sum of digits (42) gives a square (134689 = 367²).

It can be divided in two parts, 565 and 6938, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 5656938 in words is "five million, six hundred fifty-six thousand, nine hundred thirty-eight".