40040315 has 24 divisors (see below), whose sum is σ = 57972960. Its totient is φ = 26002944.

The previous prime is 40040293. The next prime is 40040393. The reversal of 40040315 is 51304004.

It is a de Polignac number, because none of the positive numbers 2^k-40040315 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40040293 and 40040302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11051 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (2415540).

Almost surely, 2^40040315 is an apocalyptic number.

40040315 is a deficient number, since it is larger than the sum of its proper divisors (17932645).

40040315 is a wasteful number, since it uses less digits than its factorization.

40040315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219 (or 3200 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40040315 is about 6327.7416982680. The cubic root of 40040315 is about 342.1100468904.

Adding to 40040315 its reverse (51304004), we get a palindrome (91344319).

The spelling of 40040315 in words is "forty million, forty thousand, three hundred fifteen".