41405440 has 44 divisors (see below), whose sum is σ = 99336816. Its totient is φ = 16560128.

The previous prime is 41405437. The next prime is 41405471. The reversal of 41405440 is 4450414.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077 + ... + 9163.

Almost surely, 2^41405440 is an apocalyptic number.

41405440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41405440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49668408).

41405440 is an abundant number, since it is smaller than the sum of its proper divisors (57931376).

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

41405440 is an equidigital number, since it uses as much as digits as its factorization.

41405440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112 (or 8094 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 41405440 is about 6434.7058984852. The cubic root of 41405440 is about 345.9546199965.

Adding to 41405440 its reverse (4450414), we get a palindrome (45855854).

The spelling of 41405440 in words is "forty-one million, four hundred five thousand, four hundred forty".