4420400220 has 36 divisors (see below), whose sum is σ = 13408547880. Its totient is φ = 1178773344.

The previous prime is 4420400209. The next prime is 4420400251. The reversal of 4420400220 is 220040244.

4420400220 is a `hidden beast` number, since 4 + 42 + 0 + 400 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4420400193 and 4420400202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12278710 + ... + 12279069.

Almost surely, 2^4420400220 is an apocalyptic number.

It is an amenable number.

4420400220 is an abundant number, since it is smaller than the sum of its proper divisors (8988147660).

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

4420400220 is a wasteful number, since it uses less digits than its factorization.

4420400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24557794 (or 24557789 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4420400220 is about 66486.0904249904. The cubic root of 4420400220 is about 1641.1711122589.

Adding to 4420400220 its reverse (220040244), we get a palindrome (4640440464).

The spelling of 4420400220 in words is "four billion, four hundred twenty million, four hundred thousand, two hundred twenty".