5540240321 has 24 divisors (see below), whose sum is σ = 7062338304. Its totient is φ = 4297618080.

The previous prime is 5540240269. The next prime is 5540240351. The reversal of 5540240321 is 1230420455.

It is a happy number.

It is not a de Polignac number, because 5540240321 - 2⁶ = 5540240257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5540240351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97151 + ... + 143243.

It is an arithmetic number, because the mean of its divisors is an integer number (294264096).

Almost surely, 2^5540240321 is an apocalyptic number.

It is an amenable number.

5540240321 is a deficient number, since it is larger than the sum of its proper divisors (1522097983).

5540240321 is a wasteful number, since it uses less digits than its factorization.

5540240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46341 (or 46334 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5540240321 is about 74432.7906302054. The cubic root of 5540240321 is about 1769.4686309655.

Adding to 5540240321 its reverse (1230420455), we get a palindrome (6770660776).

The spelling of 5540240321 in words is "five billion, five hundred forty million, two hundred forty thousand, three hundred twenty-one".