40664954 has 12 divisors (see below), whose sum is σ = 67047162. Its totient is φ = 18483960.

The previous prime is 40664941. The next prime is 40664977. The reversal of 40664954 is 45946604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29408929 + 11256025 = 5423^2 + 3355^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83777 + ... + 84260.

Almost surely, 2^40664954 is an apocalyptic number.

40664954 is a deficient number, since it is larger than the sum of its proper divisors (26382208).

40664954 is a wasteful number, since it uses less digits than its factorization.

40664954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168061 (or 168050 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 40664954 is about 6376.9078713747. The cubic root of 40664954 is about 343.8798762571.

The spelling of 40664954 in words is "forty million, six hundred sixty-four thousand, nine hundred fifty-four".