220002437440 has 112 divisors (see below), whose sum is σ = 526409107200. Its totient is φ = 87577362432.

The previous prime is 220002437437. The next prime is 220002437443. The reversal of 220002437440 is 44734200022.

It is an interprime number because it is at equal distance from previous prime (220002437437) and next prime (220002437443).

It is a super-2 number, since 2×220002437440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220002437399 and 220002437408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002437443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66284101 + ... + 66287419.

Almost surely, 2^220002437440 is an apocalyptic number.

220002437440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220002437440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263204553600).

220002437440 is an abundant number, since it is smaller than the sum of its proper divisors (306406669760).

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

220002437440 is a wasteful number, since it uses less digits than its factorization.

220002437440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

Adding to 220002437440 its reverse (44734200022), we get a palindrome (264736637462).

The spelling of 220002437440 in words is "two hundred twenty billion, two million, four hundred thirty-seven thousand, four hundred forty".