5220742240 has 144 divisors (see below), whose sum is σ = 14811237504. Its totient is φ = 1732147200.

The previous prime is 5220742237. The next prime is 5220742243. The reversal of 5220742240 is 422470225.

It is an interprime number because it is at equal distance from previous prime (5220742237) and next prime (5220742243).

It is a super-2 number, since 2×5220742240² = 54512299073040435200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 5220742199 and 5220742208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5220742243) 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, 232300 + ... + 253780.

It is an arithmetic number, because the mean of its divisors is an integer number (102855816).

Almost surely, 2^5220742240 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 5220742240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7405618752).

5220742240 is an abundant number, since it is smaller than the sum of its proper divisors (9590495264).

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

5220742240 is a wasteful number, since it uses less digits than its factorization.

5220742240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541 (or 21526 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 5220742240 is about 72254.7039299173. The cubic root of 5220742240 is about 1734.7787109079.

The spelling of 5220742240 in words is "five billion, two hundred twenty million, seven hundred forty-two thousand, two hundred forty".