4020440220220 has 48 divisors (see below), whose sum is σ = 8605855127520. Its totient is φ = 1577267582976.

The previous prime is 4020440220211. The next prime is 4020440220229. The reversal of 4020440220220 is 220220440204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4020440220211) and next prime (4020440220229).

It is a junction number, because it is equal to n+sod(n) for n = 4020440220191 and 4020440220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020440220229) 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, 3423417 + ... + 4445296.

It is an arithmetic number, because the mean of its divisors is an integer number (179288648490).

Almost surely, 2^{4020440220220} is an apocalyptic number.

It is an amenable number.

4020440220220 is an abundant number, since it is smaller than the sum of its proper divisors (4585414907300).

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

4020440220220 is a wasteful number, since it uses less digits than its factorization.

4020440220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869214 (or 7869212 counting only the distinct ones).

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

Adding to 4020440220220 its reverse (220220440204), we get a palindrome (4240660660424).

The spelling of 4020440220220 in words is "four trillion, twenty billion, four hundred forty million, two hundred twenty thousand, two hundred twenty".