4057745 has 16 divisors (see below), whose sum is σ = 5142528. Its totient is φ = 3069120.

The previous prime is 4057727. The next prime is 4057759. The reversal of 4057745 is 5477504.

It is not a de Polignac number, because 4057745 - 2⁶ = 4057681 is a prime.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7007 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (321408).

Almost surely, 2^4057745 is an apocalyptic number.

It is an amenable number.

4057745 is a deficient number, since it is larger than the sum of its proper divisors (1084783).

4057745 is a wasteful number, since it uses less digits than its factorization.

4057745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 4057745 is about 2014.3845213861. The cubic root of 4057745 is about 159.5003292021.

The spelling of 4057745 in words is "four million, fifty-seven thousand, seven hundred forty-five".