40065043 has 8 divisors (see below), whose sum is σ = 41551328. Its totient is φ = 38600064.

The previous prime is 40065031. The next prime is 40065059. The reversal of 40065043 is 34056004.

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 40065043 - 2²⁵ = 6510611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40065083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (5193916).

Almost surely, 2^40065043 is an apocalyptic number.

40065043 is a deficient number, since it is larger than the sum of its proper divisors (1486285).

40065043 is a wasteful number, since it uses less digits than its factorization.

40065043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10653.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40065043 is about 6329.6953323205. The cubic root of 40065043 is about 342.1804588934.

The spelling of 40065043 in words is "forty million, sixty-five thousand, forty-three".