2606205380 has 12 divisors (see below), whose sum is σ = 5473031340. Its totient is φ = 1042482144.

The previous prime is 2606205377. The next prime is 2606205401. The reversal of 2606205380 is 835026062.

2606205380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1675101184 + 931104196 = 40928^2 + 30514^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65155115 + ... + 65155154.

It is an arithmetic number, because the mean of its divisors is an integer number (456085945).

Almost surely, 2^2606205380 is an apocalyptic number.

2606205380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2606205380 is an abundant number, since it is smaller than the sum of its proper divisors (2866825960).

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

2606205380 is a wasteful number, since it uses less digits than its factorization.

2606205380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130310278 (or 130310276 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2606205380 is about 51051.0076296247. The cubic root of 2606205380 is about 1376.1619498236.

The spelling of 2606205380 in words is "two billion, six hundred six million, two hundred five thousand, three hundred eighty".