40316905 has 4 divisors (see below), whose sum is σ = 48380292. Its totient is φ = 32253520.

The previous prime is 40316869. The next prime is 40316933. The reversal of 40316905 is 50961304.

40316905 is nontrivially palindromic in base 7.

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 27154521 + 13162384 = 5211^2 + 3628^2 .

It is not a de Polignac number, because 40316905 - 2¹³ = 40308713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031686 + ... + 4031695.

It is an arithmetic number, because the mean of its divisors is an integer number (12095073).

Almost surely, 2^40316905 is an apocalyptic number.

It is an amenable number.

40316905 is a deficient number, since it is larger than the sum of its proper divisors (8063387).

40316905 is an equidigital number, since it uses as much as digits as its factorization.

40316905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063386.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40316905 is about 6349.5594335355. The cubic root of 40316905 is about 342.8959811740.

The spelling of 40316905 in words is "forty million, three hundred sixteen thousand, nine hundred five".