2128560260 has 12 divisors (see below), whose sum is σ = 4469976588. Its totient is φ = 851424096.

The previous prime is 2128560251. The next prime is 2128560263. The reversal of 2128560260 is 620658212.

It can be written as a sum of positive squares in 2 ways, for example, as 1293697024 + 834863236 = 35968^2 + 28894^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2128560263) 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, 53213987 + ... + 53214026.

It is an arithmetic number, because the mean of its divisors is an integer number (372498049).

Almost surely, 2^2128560260 is an apocalyptic number.

2128560260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2128560260 is an abundant number, since it is smaller than the sum of its proper divisors (2341416328).

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

2128560260 is a wasteful number, since it uses less digits than its factorization.

2128560260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106428022 (or 106428020 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2128560260 is about 46136.3225669320. The cubic root of 2128560260 is about 1286.3583893099.

The spelling of 2128560260 in words is "two billion, one hundred twenty-eight million, five hundred sixty thousand, two hundred sixty".