40956218 has 4 divisors (see below), whose sum is σ = 61434330. Its totient is φ = 20478108.

The previous prime is 40956217. The next prime is 40956241. The reversal of 40956218 is 81265904.

40956218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29953729 + 11002489 = 5473^2 + 3317^2 .

It is not an unprimeable number, because it can be changed into a prime (40956217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10239053 + ... + 10239056.

Almost surely, 2^40956218 is an apocalyptic number.

40956218 is a deficient number, since it is larger than the sum of its proper divisors (20478112).

40956218 is a wasteful number, since it uses less digits than its factorization.

40956218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20478111.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 40956218 is about 6399.7045244292. The cubic root of 40956218 is about 344.6989406098.

The spelling of 40956218 in words is "forty million, nine hundred fifty-six thousand, two hundred eighteen".