4220004440 has 32 divisors (see below), whose sum is σ = 9625085280. Its totient is φ = 1664877312.

The previous prime is 4220004409. The next prime is 4220004449. The reversal of 4220004440 is 444000224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220004449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719684 + ... + 725523.

It is an arithmetic number, because the mean of its divisors is an integer number (300783915).

Almost surely, 2^4220004440 is an apocalyptic number.

4220004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220004440 is an abundant number, since it is smaller than the sum of its proper divisors (5405080840).

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

4220004440 is a wasteful number, since it uses less digits than its factorization.

4220004440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445291 (or 1445287 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4220004440 is about 64961.5612497114. The cubic root of 4220004440 is about 1615.9861562631.

Adding to 4220004440 its reverse (444000224), we get a palindrome (4664004664).

The spelling of 4220004440 in words is "four billion, two hundred twenty million, four thousand, four hundred forty".