4405052123420 has 72 divisors (see below), whose sum is σ = 10019927808576. Its totient is φ = 1625994369792.

The previous prime is 4405052123411. The next prime is 4405052123471. The reversal of 4405052123420 is 243212505044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11207549 + ... + 11593931.

It is an arithmetic number, because the mean of its divisors is an integer number (139165664008).

Almost surely, 2^{4405052123420} 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 4405052123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5009963904288).

4405052123420 is an abundant number, since it is smaller than the sum of its proper divisors (5614875685156).

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

4405052123420 is a wasteful number, since it uses less digits than its factorization.

4405052123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389791 (or 389776 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 4405052123420 its reverse (243212505044), we get a palindrome (4648264628464).

The spelling of 4405052123420 in words is "four trillion, four hundred five billion, fifty-two million, one hundred twenty-three thousand, four hundred twenty".