41345640 has 160 divisors (see below), whose sum is σ = 158906880. Its totient is φ = 9445248.

The previous prime is 41345639. The next prime is 41345659. The reversal of 41345640 is 4654314.

41345640 is a `hidden beast` number, since 4 + 13 + 4 + 5 + 640 = 666.

41345640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21769 + ... + 23591.

It is an arithmetic number, because the mean of its divisors is an integer number (993168).

Almost surely, 2^41345640 is an apocalyptic number.

41345640 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 41345640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79453440).

41345640 is an abundant number, since it is smaller than the sum of its proper divisors (117561240).

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

41345640 is a wasteful number, since it uses less digits than its factorization.

41345640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 41345640 is about 6430.0575425108. The cubic root of 41345640 is about 345.7879908941.

Adding to 41345640 its reverse (4654314), we get a palindrome (45999954).

The spelling of 41345640 in words is "forty-one million, three hundred forty-five thousand, six hundred forty".