40845568 has 18 divisors (see below), whose sum is σ = 81532094. Its totient is φ = 20422656.

The previous prime is 40845559. The next prime is 40845583. The reversal of 40845568 is 86554804.

It can be written as a sum of positive squares in only one way, i.e., 36385024 + 4460544 = 6032^2 + 2112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40845568.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79521 + ... + 80032.

Almost surely, 2^40845568 is an apocalyptic number.

It is an amenable number.

40845568 is a deficient number, since it is larger than the sum of its proper divisors (40686526).

40845568 is an equidigital number, since it uses as much as digits as its factorization.

40845568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159569 (or 159555 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 40845568 is about 6391.0537472314. The cubic root of 40845568 is about 344.3882402302.

The spelling of 40845568 in words is "forty million, eight hundred forty-five thousand, five hundred sixty-eight".