40959993 has 8 divisors (see below), whose sum is σ = 54648000. Its totient is φ = 27289328.

The previous prime is 40959979. The next prime is 40960001. The reversal of 40959993 is 39995904.

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 40959993 - 2⁶ = 40959929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40959973) 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, 2908 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (6831000).

Almost surely, 2^40959993 is an apocalyptic number.

It is an amenable number.

40959993 is a deficient number, since it is larger than the sum of its proper divisors (13688007).

40959993 is a wasteful number, since it uses less digits than its factorization.

40959993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 40959993 is about 6399.9994531250. Note that the first 3 decimals coincide. The cubic root of 40959993 is about 344.7095307683.

The spelling of 40959993 in words is "forty million, nine hundred fifty-nine thousand, nine hundred ninety-three".