40581341 has 4 divisors (see below), whose sum is σ = 41678172. Its totient is φ = 39484512.

The previous prime is 40581337. The next prime is 40581403. The reversal of 40581341 is 14318504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14100025 + 26481316 = 3755^2 + 5146^2 .

It is a cyclic number.

It is not a de Polignac number, because 40581341 - 2² = 40581337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40581341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40581301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548360 + ... + 548433.

It is an arithmetic number, because the mean of its divisors is an integer number (10419543).

Almost surely, 2^40581341 is an apocalyptic number.

It is an amenable number.

40581341 is a deficient number, since it is larger than the sum of its proper divisors (1096831).

40581341 is a wasteful number, since it uses less digits than its factorization.

40581341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096830.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 40581341 is about 6370.3485775898. The cubic root of 40581341 is about 343.6440256908.

Adding to 40581341 its reverse (14318504), we get a palindrome (54899845).

The spelling of 40581341 in words is "forty million, five hundred eighty-one thousand, three hundred forty-one".