7220229544 has 32 divisors (see below), whose sum is σ = 14774205600. Its totient is φ = 3280688320.

The previous prime is 7220229491. The next prime is 7220229547. The reversal of 7220229544 is 4459220227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7220229547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244674 + ... + 272590.

It is an arithmetic number, because the mean of its divisors is an integer number (461693925).

Almost surely, 2^7220229544 is an apocalyptic number.

It is an amenable number.

7220229544 is an abundant number, since it is smaller than the sum of its proper divisors (7553976056).

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

7220229544 is a wasteful number, since it uses less digits than its factorization.

7220229544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30873 (or 30869 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 7220229544 is about 84971.9338605401. The cubic root of 7220229544 is about 1932.7855420156.

The spelling of 7220229544 in words is "seven billion, two hundred twenty million, two hundred twenty-nine thousand, five hundred forty-four".