40344047 has 8 divisors (see below), whose sum is σ = 42171360. Its totient is φ = 38522880.

The previous prime is 40344037. The next prime is 40344091. The reversal of 40344047 is 74044304.

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

It is a cyclic number.

It is not a de Polignac number, because 40344047 - 2²⁴ = 23566831 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16547 + ... + 18827.

It is an arithmetic number, because the mean of its divisors is an integer number (5271420).

Almost surely, 2^40344047 is an apocalyptic number.

40344047 is a deficient number, since it is larger than the sum of its proper divisors (1827313).

40344047 is a wasteful number, since it uses less digits than its factorization.

40344047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 40344047 is about 6351.6963875803. The cubic root of 40344047 is about 342.9729116410.

The spelling of 40344047 in words is "forty million, three hundred forty-four thousand, forty-seven".