4057291 has 4 divisors (see below), whose sum is σ = 4636912. Its totient is φ = 3477672.

The previous prime is 4057247. The next prime is 4057297. The reversal of 4057291 is 1927504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4057291 is a prime.

It is a super-2 number, since 2×4057291² = 32923220517362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4057297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289800 + ... + 289813.

It is an arithmetic number, because the mean of its divisors is an integer number (1159228).

Almost surely, 2^4057291 is an apocalyptic number.

4057291 is a deficient number, since it is larger than the sum of its proper divisors (579621).

4057291 is an equidigital number, since it uses as much as digits as its factorization.

4057291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579620.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 4057291 is about 2014.2718287262. The cubic root of 4057291 is about 159.4943804259.

The spelling of 4057291 in words is "four million, fifty-seven thousand, two hundred ninety-one".