7238223720 has 512 divisors, whose sum is σ = 30346444800. Its totient is φ = 1493738496.

The previous prime is 7238223691. The next prime is 7238223721. The reversal of 7238223720 is 273228327.

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

It is not an unprimeable number, because it can be changed into a prime (7238223721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4618377 + ... + 4619943.

It is an arithmetic number, because the mean of its divisors is an integer number (59270400).

Almost surely, 2^7238223720 is an apocalyptic number.

7238223720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7238223720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15173222400).

7238223720 is an abundant number, since it is smaller than the sum of its proper divisors (23108221080).

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

7238223720 is a wasteful number, since it uses less digits than its factorization.

7238223720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 7238223720 is about 85077.7510281037. The cubic root of 7238223720 is about 1934.3898322526.

The spelling of 7238223720 in words is "seven billion, two hundred thirty-eight million, two hundred twenty-three thousand, seven hundred twenty".