4523405 has 4 divisors (see below), whose sum is σ = 5428092. Its totient is φ = 3618720.

The previous prime is 4523399. The next prime is 4523423. The reversal of 4523405 is 5043254.

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 2365444 + 2157961 = 1538^2 + 1469^2 .

It is not a de Polignac number, because 4523405 - 2⁸ = 4523149 is a prime.

It is a super-2 number, since 2×4523405² = 40922385588050, which contains 22 as substring.

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, 452336 + ... + 452345.

It is an arithmetic number, because the mean of its divisors is an integer number (1357023).

Almost surely, 2^4523405 is an apocalyptic number.

It is an amenable number.

4523405 is a deficient number, since it is larger than the sum of its proper divisors (904687).

4523405 is an equidigital number, since it uses as much as digits as its factorization.

4523405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904686.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4523405 is about 2126.8298004307. The cubic root of 4523405 is about 165.3820958138.

Adding to 4523405 its reverse (5043254), we get a palindrome (9566659).

The spelling of 4523405 in words is "four million, five hundred twenty-three thousand, four hundred five".