40108321 has 8 divisors (see below), whose sum is σ = 46328544. Its totient is φ = 34317120.

The previous prime is 40108309. The next prime is 40108331. The reversal of 40108321 is 12380104.

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

It is a cyclic number.

It is not a de Polignac number, because 40108321 - 2⁷ = 40108193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40108331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107055 + ... + 107428.

It is an arithmetic number, because the mean of its divisors is an integer number (5791068).

Almost surely, 2^40108321 is an apocalyptic number.

It is an amenable number.

40108321 is a deficient number, since it is larger than the sum of its proper divisors (6220223).

40108321 is a wasteful number, since it uses less digits than its factorization.

40108321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214511.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 40108321 is about 6333.1130575729. The cubic root of 40108321 is about 342.3036215961.

Adding to 40108321 its reverse (12380104), we get a palindrome (52488425).

It can be divided in two parts, 401083 and 21, that added together give a palindrome (401104).

The spelling of 40108321 in words is "forty million, one hundred eight thousand, three hundred twenty-one".