1020240660 has 24 divisors (see below), whose sum is σ = 2856674016. Its totient is φ = 272064160.

The previous prime is 1020240643. The next prime is 1020240671. The reversal of 1020240660 is 660420201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8501946 + ... + 8502065.

It is an arithmetic number, because the mean of its divisors is an integer number (119028084).

Almost surely, 2^1020240660 is an apocalyptic number.

1020240660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020240660 is an abundant number, since it is smaller than the sum of its proper divisors (1836433356).

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

1020240660 is a wasteful number, since it uses less digits than its factorization.

1020240660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17004023 (or 17004021 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1020240660 is about 31941.2063015785. The cubic root of 1020240660 is about 1006.7018712501.

Adding to 1020240660 its reverse (660420201), we get a palindrome (1680660861).

The spelling of 1020240660 in words is "one billion, twenty million, two hundred forty thousand, six hundred sixty".