40715766 has 144 divisors (see below), whose sum is σ = 114279984. Its totient is φ = 10378368.

The previous prime is 40715761. The next prime is 40715777. The reversal of 40715766 is 66751704.

It is a self number, because there is not a number n which added to its sum of digits gives 40715766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40715761) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 607665 + ... + 607731.

It is an arithmetic number, because the mean of its divisors is an integer number (793611).

Almost surely, 2^40715766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40715766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57139992).

40715766 is an abundant number, since it is smaller than the sum of its proper divisors (73564218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40715766 is a wasteful number, since it uses less digits than its factorization.

40715766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40715766 is about 6380.8906901780. The cubic root of 40715766 is about 344.0230458240.

It can be divided in two parts, 40 and 715766, that added together give a triangular number (715806 = T₁₁₉₆).

The spelling of 40715766 in words is "forty million, seven hundred fifteen thousand, seven hundred sixty-six".