40652766 has 80 divisors (see below), whose sum is σ = 113604480. Its totient is φ = 10555920.

The previous prime is 40652747. The next prime is 40652783. The reversal of 40652766 is 66725604.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 40652766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10845 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (1420056).

Almost surely, 2^40652766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40652766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56802240).

40652766 is an abundant number, since it is smaller than the sum of its proper divisors (72951714).

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

40652766 is a wasteful number, since it uses less digits than its factorization.

40652766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 40652766 is about 6375.9521641869. The cubic root of 40652766 is about 343.8455172139.

The spelling of 40652766 in words is "forty million, six hundred fifty-two thousand, seven hundred sixty-six".