40808447 has 8 divisors (see below), whose sum is σ = 44118000. Its totient is φ = 37615104.

The previous prime is 40808437. The next prime is 40808459. The reversal of 40808447 is 74480804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40808447 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40808437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28322 + ... + 29727.

It is an arithmetic number, because the mean of its divisors is an integer number (5514750).

Almost surely, 2^40808447 is an apocalyptic number.

40808447 is a deficient number, since it is larger than the sum of its proper divisors (3309553).

40808447 is a wasteful number, since it uses less digits than its factorization.

40808447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58105.

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 40808447 is about 6388.1489494219. The cubic root of 40808447 is about 344.2838803921.

The spelling of 40808447 in words is "forty million, eight hundred eight thousand, four hundred forty-seven".