40776765 has 16 divisors (see below), whose sum is σ = 65460096. Its totient is φ = 21675200.

The previous prime is 40776751. The next prime is 40776767. The reversal of 40776765 is 56767704.

It is not a de Polignac number, because 40776765 - 2²² = 36582461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40776767) 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, 295 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (4091256).

Almost surely, 2^40776765 is an apocalyptic number.

It is an amenable number.

40776765 is a deficient number, since it is larger than the sum of its proper divisors (24683331).

40776765 is a wasteful number, since it uses less digits than its factorization.

40776765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9060.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 40776765 is about 6385.6687198758. The cubic root of 40776765 is about 344.1947613766.

The spelling of 40776765 in words is "forty million, seven hundred seventy-six thousand, seven hundred sixty-five".