40766649 has 32 divisors (see below), whose sum is σ = 70723584. Its totient is φ = 20254080.

The previous prime is 40766617. The next prime is 40766651. The reversal of 40766649 is 94666704.

40766649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40766649 - 2⁵ = 40766617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40766649.

It is not an unprimeable number, because it can be changed into a prime (40766689) 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 in 31 ways as a sum of consecutive naturals, for example, 1477 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (2210112).

Almost surely, 2^40766649 is an apocalyptic number.

It is an amenable number.

40766649 is a deficient number, since it is larger than the sum of its proper divisors (29956935).

40766649 is a wasteful number, since it uses less digits than its factorization.

40766649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 40766649 is about 6384.8765845551. The cubic root of 40766649 is about 344.1662961287.

The spelling of 40766649 in words is "forty million, seven hundred sixty-six thousand, six hundred forty-nine".