2057271890 has 16 divisors (see below), whose sum is σ = 3830782680. Its totient is φ = 794532480.

The previous prime is 2057271889. The next prime is 2057271901. The reversal of 2057271890 is 981727502.

It can be written as a sum of positive squares in 4 ways, for example, as 1664558401 + 392713489 = 40799^2 + 19817^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546731 + ... + 3547310.

Almost surely, 2^2057271890 is an apocalyptic number.

2057271890 is a deficient number, since it is larger than the sum of its proper divisors (1773510790).

2057271890 is a wasteful number, since it uses less digits than its factorization.

2057271890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094077.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 2057271890 is about 45357.1591923480. The cubic root of 2057271890 is about 1271.8343900691.

The spelling of 2057271890 in words is "two billion, fifty-seven million, two hundred seventy-one thousand, eight hundred ninety".