4150809 has 18 divisors (see below), whose sum is σ = 6494670. Its totient is φ = 2553408.

The previous prime is 4150793. The next prime is 4150813. The reversal of 4150809 is 9080514.

It can be written as a sum of positive squares in 3 ways, for example, as 360000 + 3790809 = 600^2 + 1947^2 .

It is not a de Polignac number, because 4150809 - 2⁴ = 4150793 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

4150809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4150819) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 157 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (360815).

Almost surely, 2^4150809 is an apocalyptic number.

It is an amenable number.

4150809 is a deficient number, since it is larger than the sum of its proper divisors (2343861).

4150809 is a wasteful number, since it uses less digits than its factorization.

4150809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4150809 is about 2037.3534303110. The cubic root of 4150809 is about 160.7104991277.

Subtracting from 4150809 its product of nonzero digits (1440), we obtain a square (4149369 = 2037²).

The spelling of 4150809 in words is "four million, one hundred fifty thousand, eight hundred nine".