2447220252 has 24 divisors (see below), whose sum is σ = 5831675136. Its totient is φ = 798383728.

The previous prime is 2447220221. The next prime is 2447220313. The reversal of 2447220252 is 2520227442.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168958 + ... + 2170085.

It is an arithmetic number, because the mean of its divisors is an integer number (242986464).

Almost surely, 2^2447220252 is an apocalyptic number.

It is an amenable number.

2447220252 is an abundant number, since it is smaller than the sum of its proper divisors (3384454884).

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

2447220252 is a wasteful number, since it uses less digits than its factorization.

2447220252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339097 (or 4339095 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 2447220252 is about 49469.3870186401. The cubic root of 2447220252 is about 1347.5897096533.

Adding to 2447220252 its reverse (2520227442), we get a palindrome (4967447694).

The spelling of 2447220252 in words is "two billion, four hundred forty-seven million, two hundred twenty thousand, two hundred fifty-two".