40320395 has 8 divisors (see below), whose sum is σ = 48418560. Its totient is φ = 32233600.

The previous prime is 40320391. The next prime is 40320431. The reversal of 40320395 is 59302304.

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

It is not a de Polignac number, because 40320395 - 2² = 40320391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40320391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12566 + ... + 15444.

It is an arithmetic number, because the mean of its divisors is an integer number (6052320).

Almost surely, 2^40320395 is an apocalyptic number.

40320395 is a deficient number, since it is larger than the sum of its proper divisors (8098165).

40320395 is a wasteful number, since it uses less digits than its factorization.

40320395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 40320395 is about 6349.8342498053. The cubic root of 40320395 is about 342.9058750589.

Adding to 40320395 its reverse (59302304), we get a palindrome (99622699).

The spelling of 40320395 in words is "forty million, three hundred twenty thousand, three hundred ninety-five".