40847144 has 16 divisors (see below), whose sum is σ = 82480020. Its totient is φ = 18852480.

The previous prime is 40847129. The next prime is 40847159. The reversal of 40847144 is 44174804.

40847144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40847129) and next prime (40847159).

It can be written as a sum of positive squares in 2 ways, for example, as 40475044 + 372100 = 6362^2 + 610^2 .

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 40847144.

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 3 ways as a sum of consecutive naturals, for example, 196277 + ... + 196484.

Almost surely, 2^40847144 is an apocalyptic number.

It is an amenable number.

40847144 is an abundant number, since it is smaller than the sum of its proper divisors (41632876).

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

40847144 is a wasteful number, since it uses less digits than its factorization.

40847144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392780 (or 392776 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 40847144 is about 6391.1770433935. The cubic root of 40847144 is about 344.3926695062.

The spelling of 40847144 in words is "forty million, eight hundred forty-seven thousand, one hundred forty-four".