5636540 has 96 divisors (see below), whose sum is σ = 15429120. Its totient is φ = 1679616.

The previous prime is 5636539. The next prime is 5636551. The reversal of 5636540 is 456365.

5636540 = 361² + 362² + ... + 399².

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34499 + ... + 34661.

It is an arithmetic number, because the mean of its divisors is an integer number (160720).

Almost surely, 2^5636540 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 5636540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7714560).

5636540 is an abundant number, since it is smaller than the sum of its proper divisors (9792580).

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

5636540 is a wasteful number, since it uses less digits than its factorization.

5636540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 5636540 is about 2374.1398442383. The cubic root of 5636540 is about 177.9662015532.

The spelling of 5636540 in words is "five million, six hundred thirty-six thousand, five hundred forty".