41555540 has 48 divisors (see below), whose sum is σ = 94482192. Its totient is φ = 15261696.

The previous prime is 41555539. The next prime is 41555561. The reversal of 41555540 is 4555514.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 364816 + 41190724 = 604^2 + 6418^2 .

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, 71732 + ... + 72308.

It is an arithmetic number, because the mean of its divisors is an integer number (1968379).

Almost surely, 2^41555540 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 41555540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47241096).

41555540 is an abundant number, since it is smaller than the sum of its proper divisors (52926652).

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

41555540 is a wasteful number, since it uses less digits than its factorization.

41555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 41555540 is about 6446.3586620665. The cubic root of 41555540 is about 346.3721590626.

It can be divided in two parts, 415 and 55540, that added together give a palindrome (55955).

The spelling of 41555540 in words is "forty-one million, five hundred fifty-five thousand, five hundred forty".