220044400240 has 40 divisors (see below), whose sum is σ = 584689407840. Its totient is φ = 75443794176.

The previous prime is 220044400223. The next prime is 220044400243. The reversal of 220044400240 is 42004440022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220044400243) 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, 196467655 + ... + 196468774.

It is an arithmetic number, because the mean of its divisors is an integer number (14617235196).

Almost surely, 2^220044400240 is an apocalyptic number.

220044400240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220044400240 is an abundant number, since it is smaller than the sum of its proper divisors (364645007600).

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

220044400240 is a wasteful number, since it uses less digits than its factorization.

220044400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392936449 (or 392936443 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 220044400240 its reverse (42004440022), we get a palindrome (262048840262).

It can be divided in two parts, 22004 and 4400240, that added together give a palindrome (4422244).

The spelling of 220044400240 in words is "two hundred twenty billion, forty-four million, four hundred thousand, two hundred forty".