40712765 has 24 divisors (see below), whose sum is σ = 52072920. Its totient is φ = 30533760.

The previous prime is 40712761. The next prime is 40712779. The reversal of 40712765 is 56721704.

It can be written as a sum of positive squares in 4 ways, for example, as 21335161 + 19377604 = 4619^2 + 4402^2 .

It is not a de Polignac number, because 40712765 - 2² = 40712761 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40712761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177671 + ... + 177899.

It is an arithmetic number, because the mean of its divisors is an integer number (2169705).

Almost surely, 2^40712765 is an apocalyptic number.

It is an amenable number.

40712765 is a deficient number, since it is larger than the sum of its proper divisors (11360155).

40712765 is a wasteful number, since it uses less digits than its factorization.

40712765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 40712765 is about 6380.6555305862. The cubic root of 40712765 is about 344.0145934182.

The spelling of 40712765 in words is "forty million, seven hundred twelve thousand, seven hundred sixty-five".