4721705420 has 48 divisors (see below), whose sum is σ = 10626372288. Its totient is φ = 1757733120.

The previous prime is 4721705419. The next prime is 4721705479. The reversal of 4721705420 is 245071274.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121691 + ... + 155730.

It is an arithmetic number, because the mean of its divisors is an integer number (221382756).

Almost surely, 2^4721705420 is an apocalyptic number.

It is an amenable number.

4721705420 is an abundant number, since it is smaller than the sum of its proper divisors (5904666868).

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

4721705420 is a wasteful number, since it uses less digits than its factorization.

4721705420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277490 (or 277488 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 4721705420 is about 68714.6667022405. Note that the first 3 decimals coincide. The cubic root of 4721705420 is about 1677.6433107768.

Adding to 4721705420 its reverse (245071274), we get a palindrome (4966776694).

The spelling of 4721705420 in words is "four billion, seven hundred twenty-one million, seven hundred five thousand, four hundred twenty".