4057851 has 16 divisors (see below), whose sum is σ = 6270464. Its totient is φ = 2286144.

The previous prime is 4057847. The next prime is 4057853. The reversal of 4057851 is 1587504.

It is not a de Polignac number, because 4057851 - 2² = 4057847 is a prime.

It is a Duffinian number.

4057851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4057853) 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 15 ways as a sum of consecutive naturals, for example, 210 + ... + 2856.

It is an arithmetic number, because the mean of its divisors is an integer number (391904).

Almost surely, 2^4057851 is an apocalyptic number.

4057851 is a deficient number, since it is larger than the sum of its proper divisors (2212613).

4057851 is a wasteful number, since it uses less digits than its factorization.

4057851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 4057851 is about 2014.4108319804. The cubic root of 4057851 is about 159.5017180595.

It can be divided in two parts, 405 and 7851, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 4057851 in words is "four million, fifty-seven thousand, eight hundred fifty-one".