2027491281 has 24 divisors (see below), whose sum is σ = 3153440160. Its totient is φ = 1250583936.

The previous prime is 2027491267. The next prime is 2027491337. The reversal of 2027491281 is 1821947202.

2027491281 is a `hidden beast` number, since 20 + 274 + 91 + 281 = 666.

It is not a de Polignac number, because 2027491281 - 2⁹ = 2027490769 is a prime.

It is a super-2 number, since 2×2027491281² = 8221441789062041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2027491681) 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 23 ways as a sum of consecutive naturals, for example, 103275 + ... + 121328.

It is an arithmetic number, because the mean of its divisors is an integer number (131393340).

Almost surely, 2^2027491281 is an apocalyptic number.

It is an amenable number.

2027491281 is a deficient number, since it is larger than the sum of its proper divisors (1125948879).

2027491281 is a wasteful number, since it uses less digits than its factorization.

2027491281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224685 (or 224682 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2027491281 is about 45027.6723915416. The cubic root of 2027491281 is about 1265.6676070082.

The spelling of 2027491281 in words is "two billion, twenty-seven million, four hundred ninety-one thousand, two hundred eighty-one".