4057406 has 4 divisors (see below), whose sum is σ = 6086112. Its totient is φ = 2028702.

The previous prime is 4057397. The next prime is 4057409. The reversal of 4057406 is 6047504.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014350 + ... + 1014353.

It is an arithmetic number, because the mean of its divisors is an integer number (1521528).

Almost surely, 2^4057406 is an apocalyptic number.

4057406 is a deficient number, since it is larger than the sum of its proper divisors (2028706).

4057406 is a wasteful number, since it uses less digits than its factorization.

4057406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028705.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4057406 is about 2014.3003748200. The cubic root of 4057406 is about 159.4958873164.

The spelling of 4057406 in words is "four million, fifty-seven thousand, four hundred six".