40380808 has 16 divisors (see below), whose sum is σ = 81538380. Its totient is φ = 18637248.

The previous prime is 40380787. The next prime is 40380853. The reversal of 40380808 is 80808304.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 1965604 = 6198^2 + 1402^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40380808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194035 + ... + 194242.

Almost surely, 2^40380808 is an apocalyptic number.

It is an amenable number.

40380808 is an abundant number, since it is smaller than the sum of its proper divisors (41157572).

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

40380808 is a wasteful number, since it uses less digits than its factorization.

40380808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388296 (or 388292 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 40380808 is about 6354.5895225420. The cubic root of 40380808 is about 343.0770509185.

The spelling of 40380808 in words is "forty million, three hundred eighty thousand, eight hundred eight".