40661248 has 36 divisors (see below), whose sum is σ = 83977740. Its totient is φ = 19625984.

The previous prime is 40661227. The next prime is 40661281. The reversal of 40661248 is 84216604.

It can be written as a sum of positive squares in 2 ways, for example, as 34668544 + 5992704 = 5888^2 + 2448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4686 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (2332715).

Almost surely, 2^40661248 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 40661248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41988870).

40661248 is an abundant number, since it is smaller than the sum of its proper divisors (43316492).

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

40661248 is an equidigital number, since it uses as much as digits as its factorization.

40661248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40661248 is about 6376.6172850501. The cubic root of 40661248 is about 343.8694294438.

The spelling of 40661248 in words is "forty million, six hundred sixty-one thousand, two hundred forty-eight".