41981040 has 120 divisors (see below), whose sum is σ = 142178400. Its totient is φ = 11100672.

The previous prime is 41981039. The next prime is 41981053. The reversal of 41981040 is 4018914.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 41980995 and 41981013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143134 + ... + 143426.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^41981040 is an apocalyptic number.

41981040 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 41981040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71089200).

41981040 is an abundant number, since it is smaller than the sum of its proper divisors (100197360).

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

41981040 is a wasteful number, since it uses less digits than its factorization.

41981040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 41981040 is about 6479.2777375260. The cubic root of 41981040 is about 347.5503506911.

Adding to 41981040 its reverse (4018914), we get a palindrome (45999954).

The spelling of 41981040 in words is "forty-one million, nine hundred eighty-one thousand, forty".