5221049940 has 192 divisors, whose sum is σ = 16473784320. Its totient is φ = 1372705920.

The previous prime is 5221049927. The next prime is 5221049947. The reversal of 5221049940 is 499401225.

5221049940 is a `hidden beast` number, since 522 + 1 + 0 + 4 + 99 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5221049895 and 5221049904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221049947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23000107 + ... + 23000333.

It is an arithmetic number, because the mean of its divisors is an integer number (85800960).

Almost surely, 2^5221049940 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 5221049940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8236892160).

5221049940 is an abundant number, since it is smaller than the sum of its proper divisors (11252734380).

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

5221049940 is a wasteful number, since it uses less digits than its factorization.

5221049940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 5221049940 is about 72256.8331716800. The cubic root of 5221049940 is about 1734.8127916891.

The spelling of 5221049940 in words is "five billion, two hundred twenty-one million, forty-nine thousand, nine hundred forty".