4427216802 has 18 divisors (see below), whose sum is σ = 9592914747. Its totient is φ = 1475644836.

The previous prime is 4427216749. The next prime is 4427216803. The reversal of 4427216802 is 2086127244.

It can be written as a sum of positive squares in only one way, i.e., 2213608401 + 2213608401 = 47049^2 + 47049^2 .

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

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=47049.

It is a super-2 number, since 2×4427216802² = 39200497223822214408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4427216803) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 274453 + ... + 290135.

Almost surely, 2^4427216802 is an apocalyptic number.

4427216802 is an abundant number, since it is smaller than the sum of its proper divisors (5165697945).

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

4427216802 is an frugal number, since it uses more digits than its factorization.

4427216802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31374 (or 15688 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 4427216802 is about 66537.3338960917. Note that the first 3 decimals coincide. The cubic root of 4427216802 is about 1642.0142811534.

The spelling of 4427216802 in words is "four billion, four hundred twenty-seven million, two hundred sixteen thousand, eight hundred two".