4020727660 has 24 divisors (see below), whose sum is σ = 8472357936. Its totient is φ = 1602799680.

The previous prime is 4020727639. The next prime is 4020727663. The reversal of 4020727660 is 667270204.

It is not an unprimeable number, because it can be changed into a prime (4020727663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337206 + ... + 348925.

It is an arithmetic number, because the mean of its divisors is an integer number (353014914).

Almost surely, 2^4020727660 is an apocalyptic number.

It is an amenable number.

4020727660 is an abundant number, since it is smaller than the sum of its proper divisors (4451630276).

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

4020727660 is a wasteful number, since it uses less digits than its factorization.

4020727660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686433 (or 686431 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 4020727660 is about 63409.2080064087. The cubic root of 4020727660 is about 1590.1382551878.

Adding to 4020727660 its reverse (667270204), we get a palindrome (4687997864).

The spelling of 4020727660 in words is "four billion, twenty million, seven hundred twenty-seven thousand, six hundred sixty".