2027855380 has 12 divisors (see below), whose sum is σ = 4258496340. Its totient is φ = 811142144.

The previous prime is 2027855341. The next prime is 2027855381. The reversal of 2027855380 is 835587202.

It can be written as a sum of positive squares in 2 ways, for example, as 471237264 + 1556618116 = 21708^2 + 39454^2 .

It is a super-2 number, since 2×2027855380² = 8224394884389888800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027855381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50696365 + ... + 50696404.

It is an arithmetic number, because the mean of its divisors is an integer number (354874695).

Almost surely, 2^2027855380 is an apocalyptic number.

2027855380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2027855380 is an abundant number, since it is smaller than the sum of its proper divisors (2230640960).

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

2027855380 is a wasteful number, since it uses less digits than its factorization.

2027855380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101392778 (or 101392776 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 2027855380 is about 45031.7152682418. The cubic root of 2027855380 is about 1265.7433657767.

The spelling of 2027855380 in words is "two billion, twenty-seven million, eight hundred fifty-five thousand, three hundred eighty".