7722252 has 18 divisors (see below), whose sum is σ = 19520228. Its totient is φ = 2574072.

The previous prime is 7722251. The next prime is 7722257. The reversal of 7722252 is 2522277.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (7722251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107218 + ... + 107289.

Almost surely, 2^7722252 is an apocalyptic number.

It is an amenable number.

7722252 is an abundant number, since it is smaller than the sum of its proper divisors (11797976).

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

7722252 is a wasteful number, since it uses less digits than its factorization.

7722252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214517 (or 214512 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 7722252 is about 2778.8940246076. The cubic root of 7722252 is about 197.6581183162.

The spelling of 7722252 in words is "seven million, seven hundred twenty-two thousand, two hundred fifty-two".