40740765 has 16 divisors (see below), whose sum is σ = 70199808. Its totient is φ = 20056896.

The previous prime is 40740719. The next prime is 40740767. The reversal of 40740765 is 56704704.

It is not a de Polignac number, because 40740765 - 2⁸ = 40740509 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 (40740767) 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, 104269 + ... + 104658.

It is an arithmetic number, because the mean of its divisors is an integer number (4387488).

Almost surely, 2^40740765 is an apocalyptic number.

It is an amenable number.

40740765 is a deficient number, since it is larger than the sum of its proper divisors (29459043).

40740765 is a wasteful number, since it uses less digits than its factorization.

40740765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208948.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 40740765 is about 6382.8492853897. The cubic root of 40740765 is about 344.0934401161.

The spelling of 40740765 in words is "forty million, seven hundred forty thousand, seven hundred sixty-five".