5439636 has 60 divisors (see below), whose sum is σ = 14446432. Its totient is φ = 1784592.

The previous prime is 5439619. The next prime is 5439641. The reversal of 5439636 is 6369345.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5439636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33291 + ... + 33453.

Almost surely, 2^5439636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5439636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7223216).

5439636 is an abundant number, since it is smaller than the sum of its proper divisors (9006796).

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

5439636 is a wasteful number, since it uses less digits than its factorization.

5439636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 271 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 5439636 is about 2332.3027247765. The cubic root of 5439636 is about 175.8692641371.

The spelling of 5439636 in words is "five million, four hundred thirty-nine thousand, six hundred thirty-six".