4220354434072 has 96 divisors (see below), whose sum is σ = 9337560951600. Its totient is φ = 1782798667776.

The previous prime is 4220354434031. The next prime is 4220354434073. The reversal of 4220354434072 is 2704344530224.

It is a super-2 number, since 2×4220354434072² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220354434073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13938304 + ... + 14237872.

Almost surely, 2^{4220354434072} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4220354434072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4668780475800).

4220354434072 is an abundant number, since it is smaller than the sum of its proper divisors (5117206517528).

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

4220354434072 is a wasteful number, since it uses less digits than its factorization.

4220354434072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300105 (or 300094 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 40.

Adding to 4220354434072 its reverse (2704344530224), we get a palindrome (6924698964296).

The spelling of 4220354434072 in words is "four trillion, two hundred twenty billion, three hundred fifty-four million, four hundred thirty-four thousand, seventy-two".