5540610420 has 144 divisors (see below), whose sum is σ = 17822055888. Its totient is φ = 1388482560.

The previous prime is 5540610391. The next prime is 5540610421. The reversal of 5540610420 is 240160455.

5540610420 is a `hidden beast` number, since 5 + 5 + 4 + 0 + 610 + 42 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 25765776 + 5514844644 = 5076^2 + 74262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540610421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3417210 + ... + 3418830.

It is an arithmetic number, because the mean of its divisors is an integer number (123764277).

Almost surely, 2^5540610420 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 5540610420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8911027944).

5540610420 is an abundant number, since it is smaller than the sum of its proper divisors (12281445468).

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

5540610420 is a wasteful number, since it uses less digits than its factorization.

5540610420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770 (or 2765 counting only the distinct ones).

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

The square root of 5540610420 is about 74435.2767174275. The cubic root of 5540610420 is about 1769.5080314217.

Adding to 5540610420 its reverse (240160455), we get a palindrome (5780770875).

The spelling of 5540610420 in words is "five billion, five hundred forty million, six hundred ten thousand, four hundred twenty".