5649738 has 16 divisors (see below), whose sum is σ = 11412576. Its totient is φ = 1864400.

The previous prime is 5649733. The next prime is 5649739. The reversal of 5649738 is 8379465.

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 5649738.

It is not an unprimeable number, because it can be changed into a prime (5649733) 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 7 ways as a sum of consecutive naturals, for example, 4056 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (713286).

Almost surely, 2^5649738 is an apocalyptic number.

5649738 is an abundant number, since it is smaller than the sum of its proper divisors (5762838).

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

5649738 is a wasteful number, since it uses less digits than its factorization.

5649738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429.

The product of its digits is 181440, while the sum is 42.

The square root of 5649738 is about 2376.9177520478. The cubic root of 5649738 is about 178.1049963378.

It can be divided in two parts, 56 and 49738, that added together give a palindrome (49794).

The spelling of 5649738 in words is "five million, six hundred forty-nine thousand, seven hundred thirty-eight".