40994893 has 8 divisors (see below), whose sum is σ = 42600600. Its totient is φ = 39402048.

The previous prime is 40994887. The next prime is 40994909. The reversal of 40994893 is 39849904.

It can be written as a sum of positive squares in 4 ways, for example, as 3992004 + 37002889 = 1998^2 + 6083^2 .

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 40994893 - 2⁵ = 40994861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40994693) 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, 3555 + ... + 9727.

It is an arithmetic number, because the mean of its divisors is an integer number (5325075).

Almost surely, 2^40994893 is an apocalyptic number.

It is an amenable number.

40994893 is a deficient number, since it is larger than the sum of its proper divisors (1605707).

40994893 is a wasteful number, since it uses less digits than its factorization.

40994893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 40994893 is about 6402.7254353127. The cubic root of 40994893 is about 344.8074063337.

The spelling of 40994893 in words is "forty million, nine hundred ninety-four thousand, eight hundred ninety-three".