2420666660 has 48 divisors (see below), whose sum is σ = 5188803312. Its totient is φ = 948326400.

The previous prime is 2420666657. The next prime is 2420666683. The reversal of 2420666660 is 666660242.

It can be written as a sum of positive squares in 8 ways, for example, as 376903396 + 2043763264 = 19414^2 + 45208^2 .

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, 289904 + ... + 298136.

It is an arithmetic number, because the mean of its divisors is an integer number (108100069).

Almost surely, 2^2420666660 is an apocalyptic number.

2420666660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420666660 is an abundant number, since it is smaller than the sum of its proper divisors (2768136652).

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

2420666660 is a wasteful number, since it uses less digits than its factorization.

2420666660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544 (or 8542 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 2420666660 is about 49200.2709342134. The cubic root of 2420666660 is about 1342.6979614609.

The spelling of 2420666660 in words is "two billion, four hundred twenty million, six hundred sixty-six thousand, six hundred sixty".