2057890706 has 8 divisors (see below), whose sum is σ = 3104679564. Its totient is φ = 1022997520.

The previous prime is 2057890699. The next prime is 2057890759. The reversal of 2057890706 is 6070987502.

It can be written as a sum of positive squares in 2 ways, for example, as 1575693025 + 482197681 = 39695^2 + 21959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 2973485 + ... + 2974176.

Almost surely, 2^2057890706 is an apocalyptic number.

2057890706 is a deficient number, since it is larger than the sum of its proper divisors (1046788858).

2057890706 is a wasteful number, since it uses less digits than its factorization.

2057890706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947836.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 2057890706 is about 45363.9802706949. The cubic root of 2057890706 is about 1271.9618975342.

The spelling of 2057890706 in words is "two billion, fifty-seven million, eight hundred ninety thousand, seven hundred six".