40806777 has 16 divisors (see below), whose sum is σ = 59666112. Its totient is φ = 24601920.

The previous prime is 40806719. The next prime is 40806791. The reversal of 40806777 is 77760804.

It is a happy number.

It is not a de Polignac number, because 40806777 - 2⁶ = 40806713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40806707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3363 + ... + 9639.

It is an arithmetic number, because the mean of its divisors is an integer number (3729132).

Almost surely, 2^40806777 is an apocalyptic number.

It is an amenable number.

40806777 is a deficient number, since it is larger than the sum of its proper divisors (18859335).

40806777 is a wasteful number, since it uses less digits than its factorization.

40806777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 40806777 is about 6388.0182372939. The cubic root of 40806777 is about 344.2791839631.

The spelling of 40806777 in words is "forty million, eight hundred six thousand, seven hundred seventy-seven".