2057843642 has 16 divisors (see below), whose sum is σ = 3269204712. Its totient is φ = 968140800.

The previous prime is 2057843633. The next prime is 2057843653. The reversal of 2057843642 is 2463487502.

It can be written as a sum of positive squares in 4 ways, for example, as 2046748081 + 11095561 = 45241^2 + 3331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2057843642.

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 7 ways as a sum of consecutive naturals, for example, 202892 + ... + 212792.

Almost surely, 2^2057843642 is an apocalyptic number.

2057843642 is a deficient number, since it is larger than the sum of its proper divisors (1211361070).

2057843642 is a wasteful number, since it uses less digits than its factorization.

2057843642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16033.

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 2057843642 is about 45363.4615301787. The cubic root of 2057843642 is about 1271.9522008626.

The spelling of 2057843642 in words is "two billion, fifty-seven million, eight hundred forty-three thousand, six hundred forty-two".