40565772 has 60 divisors (see below), whose sum is σ = 114216256. Its totient is φ = 12480480.

The previous prime is 40565771. The next prime is 40565783. The reversal of 40565772 is 27756504.

40565772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40565771) 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 19 ways as a sum of consecutive naturals, for example, 604 + ... + 9027.

Almost surely, 2^40565772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40565772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57108128).

40565772 is an abundant number, since it is smaller than the sum of its proper divisors (73650484).

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

40565772 is a wasteful number, since it uses less digits than its factorization.

40565772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660 (or 9649 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 40565772 is about 6369.1264707179. The cubic root of 40565772 is about 343.6000738150.

The spelling of 40565772 in words is "forty million, five hundred sixty-five thousand, seven hundred seventy-two".