7057447220 has 12 divisors (see below), whose sum is σ = 14820639204. Its totient is φ = 2822978880.

The previous prime is 7057447183. The next prime is 7057447223. The reversal of 7057447220 is 227447507.

It can be written as a sum of positive squares in 2 ways, for example, as 1150295056 + 5907152164 = 33916^2 + 76858^2 .

It is a super-2 number, since 2×7057447220² = 99615122526171456800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7057447223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 176436161 + ... + 176436200.

It is an arithmetic number, because the mean of its divisors is an integer number (1235053267).

Almost surely, 2^7057447220 is an apocalyptic number.

It is an amenable number.

7057447220 is an abundant number, since it is smaller than the sum of its proper divisors (7763191984).

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

7057447220 is a wasteful number, since it uses less digits than its factorization.

7057447220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352872370 (or 352872368 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 7057447220 is about 84008.6139630931. The cubic root of 7057447220 is about 1918.1499123684.

The spelling of 7057447220 in words is "seven billion, fifty-seven million, four hundred forty-seven thousand, two hundred twenty".