5538240 has 112 divisors (see below), whose sum is σ = 19568160. Its totient is φ = 1474560.

The previous prime is 5538233. The next prime is 5538241. The reversal of 5538240 is 428355.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8320 + ... + 8960.

Almost surely, 2^5538240 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 5538240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9784080).

5538240 is an abundant number, since it is smaller than the sum of its proper divisors (14029920).

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

5538240 is a wasteful number, since it uses less digits than its factorization.

5538240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 5538240 is about 2353.3465533151. The cubic root of 5538240 is about 176.9255647946.

5538240 divided by its sum of digits (27) gives a triangular number (205120 = T₆₄₀).

It can be divided in two parts, 5538 and 240, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5538240 in words is "five million, five hundred thirty-eight thousand, two hundred forty".