4259405 has 4 divisors (see below), whose sum is σ = 5111292. Its totient is φ = 3407520.

The previous prime is 4259399. The next prime is 4259419. The reversal of 4259405 is 5049524.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2748964 + 1510441 = 1658^2 + 1229^2 .

It is not a de Polignac number, because 4259405 - 2⁴ = 4259389 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 3 ways as a sum of consecutive naturals, for example, 425936 + ... + 425945.

It is an arithmetic number, because the mean of its divisors is an integer number (1277823).

Almost surely, 2^4259405 is an apocalyptic number.

It is an amenable number.

4259405 is a deficient number, since it is larger than the sum of its proper divisors (851887).

4259405 is an equidigital number, since it uses as much as digits as its factorization.

4259405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851886.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 4259405 is about 2063.8325998007. The cubic root of 4259405 is about 162.0999865405.

It can be divided in two parts, 4259 and 405, that added together give a palindrome (4664).

The spelling of 4259405 in words is "four million, two hundred fifty-nine thousand, four hundred five".