40994121 has 16 divisors (see below), whose sum is σ = 64483328. Its totient is φ = 22669200.

The previous prime is 40994111. The next prime is 40994131. The reversal of 40994121 is 12149904.

It is an interprime number because it is at equal distance from previous prime (40994111) and next prime (40994131).

It is not a de Polignac number, because 40994121 - 2⁷ = 40993993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40994101) 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 15 ways as a sum of consecutive naturals, for example, 30835 + ... + 32136.

It is an arithmetic number, because the mean of its divisors is an integer number (4030208).

Almost surely, 2^40994121 is an apocalyptic number.

It is an amenable number.

40994121 is a deficient number, since it is larger than the sum of its proper divisors (23489207).

40994121 is a wasteful number, since it uses less digits than its factorization.

40994121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63012.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 40994121 is about 6402.6651482020. The cubic root of 40994121 is about 344.8052418934.

The spelling of 40994121 in words is "forty million, nine hundred ninety-four thousand, one hundred twenty-one".