4021418816 has 42 divisors (see below), whose sum is σ = 8477066358. Its totient is φ = 1892423680.

The previous prime is 4021418789. The next prime is 4021418851. The reversal of 4021418816 is 6188141204.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2584705600 + 1436713216 = 50840^2 + 37904^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90215 + ... + 127206.

Almost surely, 2^4021418816 is an apocalyptic number.

It is an amenable number.

4021418816 is an abundant number, since it is smaller than the sum of its proper divisors (4455647542).

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

4021418816 is a wasteful number, since it uses less digits than its factorization.

4021418816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217467 (or 217440 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 4021418816 is about 63414.6577377817. The cubic root of 4021418816 is about 1590.2293639556.

The spelling of 4021418816 in words is "four billion, twenty-one million, four hundred eighteen thousand, eight hundred sixteen".