4220045812 has 12 divisors (see below), whose sum is σ = 7406003556. Its totient is φ = 2104044800.

The previous prime is 4220045807. The next prime is 4220045821. The reversal of 4220045812 is 2185400224.

It can be written as a sum of positive squares in 2 ways, for example, as 1770389776 + 2449656036 = 42076^2 + 49494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492939 + ... + 1495762.

It is an arithmetic number, because the mean of its divisors is an integer number (617166963).

Almost surely, 2^4220045812 is an apocalyptic number.

It is an amenable number.

4220045812 is a deficient number, since it is larger than the sum of its proper divisors (3185957744).

4220045812 is a wasteful number, since it uses less digits than its factorization.

4220045812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989058 (or 2989056 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 4220045812 is about 64961.8796833959. The cubic root of 4220045812 is about 1615.9914371708.

The spelling of 4220045812 in words is "four billion, two hundred twenty million, forty-five thousand, eight hundred twelve".