40221244 has 48 divisors (see below), whose sum is σ = 82978560. Its totient is φ = 16704000.

The previous prime is 40221221. The next prime is 40221253. The reversal of 40221244 is 44212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160119 + ... + 160369.

It is an arithmetic number, because the mean of its divisors is an integer number (1728720).

Almost surely, 2^40221244 is an apocalyptic number.

It is an amenable number.

40221244 is an abundant number, since it is smaller than the sum of its proper divisors (42757316).

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

40221244 is a wasteful number, since it uses less digits than its factorization.

40221244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 40221244 is about 6342.0220750168. The cubic root of 40221244 is about 342.6245669048.

Adding to 40221244 its reverse (44212204), we get a palindrome (84433448).

The spelling of 40221244 in words is "forty million, two hundred twenty-one thousand, two hundred forty-four".