40687757 has 16 divisors (see below), whose sum is σ = 45826560. Its totient is φ = 35809200.

The previous prime is 40687741. The next prime is 40687769. The reversal of 40687757 is 75778604.

40687757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40687757 - 2⁴ = 40687741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40687727) 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, 45638 + ... + 46520.

It is an arithmetic number, because the mean of its divisors is an integer number (2864160).

Almost surely, 2^40687757 is an apocalyptic number.

It is an amenable number.

40687757 is a deficient number, since it is larger than the sum of its proper divisors (5138803).

40687757 is a wasteful number, since it uses less digits than its factorization.

40687757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 40687757 is about 6378.6955563030. The cubic root of 40687757 is about 343.9441414846.

The spelling of 40687757 in words is "forty million, six hundred eighty-seven thousand, seven hundred fifty-seven".