40483809 has 24 divisors (see below), whose sum is σ = 61072232. Its totient is φ = 25816320.

The previous prime is 40483801. The next prime is 40483843. The reversal of 40483809 is 90838404.

It can be written as a sum of positive squares in 4 ways, for example, as 7306209 + 33177600 = 2703^2 + 5760^2 .

It is not a de Polignac number, because 40483809 - 2³ = 40483801 is a prime.

It is a super-2 number, since 2×40483809² = 3277877582296962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40483801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19317 + ... + 21309.

Almost surely, 2^40483809 is an apocalyptic number.

It is an amenable number.

40483809 is a deficient number, since it is larger than the sum of its proper divisors (20588423).

40483809 is a wasteful number, since it uses less digits than its factorization.

40483809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40483809 is about 6362.6888184163. The cubic root of 40483809 is about 343.3685035347.

The spelling of 40483809 in words is "forty million, four hundred eighty-three thousand, eight hundred nine".