7722538224 has 40 divisors (see below), whose sum is σ = 20230883712. Its totient is φ = 2537922240.

The previous prime is 7722538223. The next prime is 7722538283. The reversal of 7722538224 is 4228352277.

It is a super-2 number, since 2×7722538224² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7722538223) 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, 1129594 + ... + 1136409.

Almost surely, 2^7722538224 is an apocalyptic number.

It is an amenable number.

7722538224 is an abundant number, since it is smaller than the sum of its proper divisors (12508345488).

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

7722538224 is a wasteful number, since it uses less digits than its factorization.

7722538224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266085 (or 2266079 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The square root of 7722538224 is about 87877.9734859652. The cubic root of 7722538224 is about 1976.6056034126.

The spelling of 7722538224 in words is "seven billion, seven hundred twenty-two million, five hundred thirty-eight thousand, two hundred twenty-four".