4149805 has 16 divisors (see below), whose sum is σ = 5474304. Its totient is φ = 2994880.

The previous prime is 4149793. The next prime is 4149811. The reversal of 4149805 is 5089414.

It is a happy number.

It is not a de Polignac number, because 4149805 - 2¹⁵ = 4117037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10644 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (342144).

Almost surely, 2^4149805 is an apocalyptic number.

It is an amenable number.

4149805 is a deficient number, since it is larger than the sum of its proper divisors (1324499).

4149805 is a wasteful number, since it uses less digits than its factorization.

4149805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4149805 is about 2037.1070173165. The cubic root of 4149805 is about 160.6975405011.

The spelling of 4149805 in words is "four million, one hundred forty-nine thousand, eight hundred five".