40950081 has 6 divisors (see below), whose sum is σ = 59150130. Its totient is φ = 27300048.

The previous prime is 40950067. The next prime is 40950089. The reversal of 40950081 is 18005904.

It can be written as a sum of positive squares in only one way, i.e., 36180225 + 4769856 = 6015^2 + 2184^2 .

It is not a de Polignac number, because 40950081 - 2¹³ = 40941889 is a prime.

It is a super-2 number, since 2×40950081² = 3353818267813122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40950089) 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 5 ways as a sum of consecutive naturals, for example, 2274996 + ... + 2275013.

It is an arithmetic number, because the mean of its divisors is an integer number (9858355).

Almost surely, 2^40950081 is an apocalyptic number.

It is an amenable number.

40950081 is a deficient number, since it is larger than the sum of its proper divisors (18200049).

40950081 is a wasteful number, since it uses less digits than its factorization.

40950081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550015 (or 4550012 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 40950081 is about 6399.2250312050. The cubic root of 40950081 is about 344.6817228492.

Adding to 40950081 its reverse (18005904), we get a palindrome (58955985).

The spelling of 40950081 in words is "forty million, nine hundred fifty thousand, eighty-one".