40221752 has 16 divisors (see below), whose sum is σ = 75661440. Its totient is φ = 20045376.

The previous prime is 40221743. The next prime is 40221757. The reversal of 40221752 is 25712204.

It is a happy number.

40221752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221757) 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 3 ways as a sum of consecutive naturals, for example, 5528 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (4728840).

Almost surely, 2^40221752 is an apocalyptic number.

It is an amenable number.

40221752 is a deficient number, since it is larger than the sum of its proper divisors (35439688).

40221752 is a wasteful number, since it uses less digits than its factorization.

40221752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16382 (or 16378 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40221752 is about 6342.0621252082. The cubic root of 40221752 is about 342.6260093643.

Adding to 40221752 its reverse (25712204), we get a palindrome (65933956).

The spelling of 40221752 in words is "forty million, two hundred twenty-one thousand, seven hundred fifty-two".