40217244 has 24 divisors (see below), whose sum is σ = 93974160. Its totient is φ = 13386624.

The previous prime is 40217237. The next prime is 40217249. The reversal of 40217244 is 44271204.

40217244 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 (40217249) 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 7 ways as a sum of consecutive naturals, for example, 8272 + ... + 12200.

It is an arithmetic number, because the mean of its divisors is an integer number (3915590).

Almost surely, 2^40217244 is an apocalyptic number.

It is an amenable number.

40217244 is an abundant number, since it is smaller than the sum of its proper divisors (53756916).

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

40217244 is a wasteful number, since it uses less digits than its factorization.

40217244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789 (or 4787 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 40217244 is about 6341.7067103423. The cubic root of 40217244 is about 342.6132085316.

Adding to 40217244 its reverse (44271204), we get a palindrome (84488448).

The spelling of 40217244 in words is "forty million, two hundred seventeen thousand, two hundred forty-four".