4220345412 has 18 divisors (see below), whose sum is σ = 10668095438. Its totient is φ = 1406781792.

The previous prime is 4220345369. The next prime is 4220345447. The reversal of 4220345412 is 2145430224.

4220345412 is a `hidden beast` number, since 4 + 2 + 203 + 45 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4155607296 + 64738116 = 64464^2 + 8046^2 .

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

It is a super-2 number, since 2×4220345412² = 35622630793178899488, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 58615873 + ... + 58615944.

Almost surely, 2^4220345412 is an apocalyptic number.

It is an amenable number.

4220345412 is an abundant number, since it is smaller than the sum of its proper divisors (6447750026).

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

4220345412 is a wasteful number, since it uses less digits than its factorization.

4220345412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117231827 (or 117231822 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4220345412 is about 64964.1856102268. The cubic root of 4220345412 is about 1616.0296784284.

Adding to 4220345412 its reverse (2145430224), we get a palindrome (6365775636).

The spelling of 4220345412 in words is "four billion, two hundred twenty million, three hundred forty-five thousand, four hundred twelve".