1020727660 has 12 divisors (see below), whose sum is σ = 2143528128. Its totient is φ = 408291056.

The previous prime is 1020727657. The next prime is 1020727661. The reversal of 1020727660 is 667270201.

It is not an unprimeable number, because it can be changed into a prime (1020727661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25518172 + ... + 25518211.

It is an arithmetic number, because the mean of its divisors is an integer number (178627344).

Almost surely, 2^1020727660 is an apocalyptic number.

1020727660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020727660 is an abundant number, since it is smaller than the sum of its proper divisors (1122800468).

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

1020727660 is a wasteful number, since it uses less digits than its factorization.

1020727660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51036392 (or 51036390 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1020727660 is about 31948.8287735247. The cubic root of 1020727660 is about 1006.8620249092.

Adding to 1020727660 its reverse (667270201), we get a palindrome (1687997861).

The spelling of 1020727660 in words is "one billion, twenty million, seven hundred twenty-seven thousand, six hundred sixty".