40561345 has 8 divisors (see below), whose sum is σ = 53098560. Its totient is φ = 29499120.

The previous prime is 40561319. The next prime is 40561363. The reversal of 40561345 is 54316504.

40561345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40561345 - 2⁷ = 40561217 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 368685 + ... + 368794.

It is an arithmetic number, because the mean of its divisors is an integer number (6637320).

Almost surely, 2^40561345 is an apocalyptic number.

It is an amenable number.

40561345 is a deficient number, since it is larger than the sum of its proper divisors (12537215).

40561345 is a wasteful number, since it uses less digits than its factorization.

40561345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737495.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40561345 is about 6368.7789253514. The cubic root of 40561345 is about 343.5875741731.

Adding to 40561345 its reverse (54316504), we get a palindrome (94877849).

The spelling of 40561345 in words is "forty million, five hundred sixty-one thousand, three hundred forty-five".