722240550 has 120 divisors (see below), whose sum is σ = 2021758992. Its totient is φ = 191160000.

The previous prime is 722240527. The next prime is 722240557. The reversal of 722240550 is 55042227.

722240550 is a `hidden beast` number, since 72 + 2 + 2 + 40 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722240557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 610960 + ... + 612140.

Almost surely, 2^722240550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722240550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010879496).

722240550 is an abundant number, since it is smaller than the sum of its proper divisors (1299518442).

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

722240550 is a wasteful number, since it uses less digits than its factorization.

722240550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 722240550 is about 26874.5334843230. The cubic root of 722240550 is about 897.2096913599.

Adding to 722240550 its reverse (55042227), we get a palindrome (777282777).

The spelling of 722240550 in words is "seven hundred twenty-two million, two hundred forty thousand, five hundred fifty".