4057906 has 8 divisors (see below), whose sum is σ = 6407280. Its totient is φ = 1922148.

The previous prime is 4057897. The next prime is 4057909. The reversal of 4057906 is 6097504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4057906² = 32933202209672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4057909) 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, 53356 + ... + 53431.

It is an arithmetic number, because the mean of its divisors is an integer number (800910).

Almost surely, 2^4057906 is an apocalyptic number.

4057906 is a deficient number, since it is larger than the sum of its proper divisors (2349374).

4057906 is a wasteful number, since it uses less digits than its factorization.

4057906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106808.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 4057906 is about 2014.4244835684. The cubic root of 4057906 is about 159.5024386835.

The spelling of 4057906 in words is "four million, fifty-seven thousand, nine hundred six".