4057442 has 8 divisors (see below), whose sum is σ = 6234732. Its totient is φ = 1979200.

The previous prime is 4057423. The next prime is 4057451. The reversal of 4057442 is 2447504.

It can be written as a sum of positive squares in 2 ways, for example, as 3171961 + 885481 = 1781^2 + 941^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24659 + ... + 24822.

Almost surely, 2^4057442 is an apocalyptic number.

4057442 is a deficient number, since it is larger than the sum of its proper divisors (2177290).

4057442 is a wasteful number, since it uses less digits than its factorization.

4057442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49524.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 4057442 is about 2014.3093109054. The cubic root of 4057442 is about 159.4963590329.

The spelling of 4057442 in words is "four million, fifty-seven thousand, four hundred forty-two".