420220004440 has 16 divisors (see below), whose sum is σ = 945495010080. Its totient is φ = 168088001760.

The previous prime is 420220004419. The next prime is 420220004461. The reversal of 420220004440 is 44400022024.

It is an interprime number because it is at equal distance from previous prime (420220004419) and next prime (420220004461).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5252750016 + ... + 5252750095.

It is an arithmetic number, because the mean of its divisors is an integer number (59093438130).

Almost surely, 2^420220004440 is an apocalyptic number.

420220004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420220004440 is an abundant number, since it is smaller than the sum of its proper divisors (525275005640).

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

420220004440 is a wasteful number, since it uses less digits than its factorization.

420220004440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10505500122 (or 10505500118 counting only the distinct ones).

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

Adding to 420220004440 its reverse (44400022024), we get a palindrome (464620026464).

The spelling of 420220004440 in words is "four hundred twenty billion, two hundred twenty million, four thousand, four hundred forty".