4027405 has 8 divisors (see below), whose sum is σ = 4855032. Its totient is φ = 3207168.

The previous prime is 4027393. The next prime is 4027421. The reversal of 4027405 is 5047204.

It can be written as a sum of positive squares in 4 ways, for example, as 114921 + 3912484 = 339^2 + 1978^2 .

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

It is a 6-Lehmer number, since φ(4027405) divides (4027405-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 4027405 - 2¹⁹ = 3503117 is a prime.

It is a Duffinian number.

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, 564 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (606879).

Almost surely, 2^4027405 is an apocalyptic number.

It is an amenable number.

4027405 is a deficient number, since it is larger than the sum of its proper divisors (827627).

4027405 is a wasteful number, since it uses less digits than its factorization.

4027405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 4027405 is about 2006.8395551214. The cubic root of 4027405 is about 159.1018031377.

The spelling of 4027405 in words is "four million, twenty-seven thousand, four hundred five".