5449640 has 32 divisors (see below), whose sum is σ = 14014080. Its totient is φ = 1868352.

The previous prime is 5449621. The next prime is 5449667. The reversal of 5449640 is 469445.

It is a happy number.

It is a super-2 number, since 2×5449640² = 59397152259200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5449597 and 5449606.

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, 9452 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (437940).

Almost surely, 2^5449640 is an apocalyptic number.

It is an amenable number.

5449640 is an abundant number, since it is smaller than the sum of its proper divisors (8564440).

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

5449640 is a wasteful number, since it uses less digits than its factorization.

5449640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481 (or 19477 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 5449640 is about 2334.4464011838. The cubic root of 5449640 is about 175.9770114603.

It can be divided in two parts, 54 and 49640, that added together give a palindrome (49694).

The spelling of 5449640 in words is "five million, four hundred forty-nine thousand, six hundred forty".