4075405 has 8 divisors (see below), whose sum is σ = 5148000. Its totient is φ = 3088656.

The previous prime is 4075397. The next prime is 4075429. The reversal of 4075405 is 5045704.

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

It is a cyclic number.

It is not a de Polignac number, because 4075405 - 2³ = 4075397 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4075405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21355 + ... + 21544.

It is an arithmetic number, because the mean of its divisors is an integer number (643500).

Almost surely, 2^4075405 is an apocalyptic number.

It is an amenable number.

4075405 is a deficient number, since it is larger than the sum of its proper divisors (1072595).

4075405 is a wasteful number, since it uses less digits than its factorization.

4075405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42923.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 4075405 is about 2018.7632352507. The cubic root of 4075405 is about 159.7313852280.

Subtracting 4075405 from its reverse (5045704), we obtain a cube (970299 = 99³).

The spelling of 4075405 in words is "four million, seventy-five thousand, four hundred five".