7223541840 has 60 divisors (see below), whose sum is σ = 24259063764. Its totient is φ = 1926277632.

The previous prime is 7223541839. The next prime is 7223541863. The reversal of 7223541840 is 481453227.

It is a happy number.

7223541840 is a `hidden beast` number, since 7 + 2 + 235 + 418 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5258570256 + 1964971584 = 72516^2 + 44328^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×7223541840³ (a number of 31 digits) contains 333 as substring.

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 = 7223541795 and 7223541804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5015629 + ... + 5017068.

Almost surely, 2^7223541840 is an apocalyptic number.

It is an amenable number.

7223541840 is an abundant number, since it is smaller than the sum of its proper divisors (17035521924).

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

7223541840 is a wasteful number, since it uses less digits than its factorization.

7223541840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032716 (or 10032707 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 7223541840 is about 84991.4221554152. The cubic root of 7223541840 is about 1933.0810533545.

The spelling of 7223541840 in words is "seven billion, two hundred twenty-three million, five hundred forty-one thousand, eight hundred forty".