7222849920 has 1024 divisors, whose sum is σ = 31256064000. Its totient is φ = 1552711680.

The previous prime is 7222849901. The next prime is 7222849927. The reversal of 7222849920 is 299482227.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222849927) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91428441 + ... + 91428519.

It is an arithmetic number, because the mean of its divisors is an integer number (30523500).

Almost surely, 2^7222849920 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 7222849920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15628032000).

7222849920 is an abundant number, since it is smaller than the sum of its proper divisors (24033214080).

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

7222849920 is a wasteful number, since it uses less digits than its factorization.

7222849920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7222849920 is about 84987.3515295070. The cubic root of 7222849920 is about 1933.0193301638.

The spelling of 7222849920 in words is "seven billion, two hundred twenty-two million, eight hundred forty-nine thousand, nine hundred twenty".