40769905 has 16 divisors (see below), whose sum is σ = 53664768. Its totient is φ = 29488000.

The previous prime is 40769903. The next prime is 40769933. The reversal of 40769905 is 50996704.

40769905 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 40769905 - 2¹ = 40769903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40769903) 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 15 ways as a sum of consecutive naturals, for example, 8565 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (3354048).

Almost surely, 2^40769905 is an apocalyptic number.

It is an amenable number.

40769905 is a deficient number, since it is larger than the sum of its proper divisors (12894863).

40769905 is a wasteful number, since it uses less digits than its factorization.

40769905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 40769905 is about 6385.1315569846. The cubic root of 40769905 is about 344.1754586480.

The spelling of 40769905 in words is "forty million, seven hundred sixty-nine thousand, nine hundred five".