2160239720 has 32 divisors (see below), whose sum is σ = 4952252520. Its totient is φ = 847791360.

The previous prime is 2160239707. The next prime is 2160239729. The reversal of 2160239720 is 279320612.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2159832676 + 407044 = 46474^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (2160239729) 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, 507371 + ... + 511610.

Almost surely, 2^2160239720 is an apocalyptic number.

2160239720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160239720 is an abundant number, since it is smaller than the sum of its proper divisors (2792012800).

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

2160239720 is a wasteful number, since it uses less digits than its factorization.

2160239720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019045 (or 1019041 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2160239720 is about 46478.3790595154. The cubic root of 2160239720 is about 1292.7086327209.

The spelling of 2160239720 in words is "two billion, one hundred sixty million, two hundred thirty-nine thousand, seven hundred twenty".