5540232 has 64 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 1686528.

The previous prime is 5540221. The next prime is 5540237. The reversal of 5540232 is 2320455.

It is a super-2 number, since 2×5540232² = 61388341227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5540199 and 5540208.

It is not an unprimeable number, because it can be changed into a prime (5540237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14913 + ... + 15279.

It is an arithmetic number, because the mean of its divisors is an integer number (235980).

Almost surely, 2^5540232 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 5540232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7551360).

5540232 is an abundant number, since it is smaller than the sum of its proper divisors (9562488).

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

5540232 is a wasteful number, since it uses less digits than its factorization.

5540232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 5540232 is about 2353.7697423495. The cubic root of 5540232 is about 176.9467745098.

Adding to 5540232 its reverse (2320455), we get a palindrome (7860687).

The spelling of 5540232 in words is "five million, five hundred forty thousand, two hundred thirty-two".