10405506 has 16 divisors (see below), whose sum is σ = 20842848. Its totient is φ = 3463200.

The previous prime is 10405501. The next prime is 10405523. The reversal of 10405506 is 60550401.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10405501) by changing a digit.

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, 6286 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (1302678).

Almost surely, 2^10405506 is an apocalyptic number.

10405506 is an abundant number, since it is smaller than the sum of its proper divisors (10437342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10405506 is a wasteful number, since it uses less digits than its factorization.

10405506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 10405506 is about 3225.7566554221. The cubic root of 10405506 is about 218.3170903882.

Adding to 10405506 its reverse (60550401), we get a palindrome (70955907).

The spelling of 10405506 in words is "ten million, four hundred five thousand, five hundred six".