4630405 has 8 divisors (see below), whose sum is σ = 5983992. Its totient is φ = 3419328.

The previous prime is 4630399. The next prime is 4630421. The reversal of 4630405 is 5040364.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 4524129 = 326^2 + 2127^2 .

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 4630405 - 2³ = 4630397 is a prime.

It is a Duffinian number.

4630405 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35554 + ... + 35683.

It is an arithmetic number, because the mean of its divisors is an integer number (747999).

Almost surely, 2^4630405 is an apocalyptic number.

It is an amenable number.

4630405 is a deficient number, since it is larger than the sum of its proper divisors (1353587).

4630405 is a wasteful number, since it uses less digits than its factorization.

4630405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71255.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4630405 is about 2151.8375868081. The cubic root of 4630405 is about 166.6759705917.

Adding to 4630405 its reverse (5040364), we get a palindrome (9670769).

The spelling of 4630405 in words is "four million, six hundred thirty thousand, four hundred five".