40008275 has 12 divisors (see below), whose sum is σ = 50765352. Its totient is φ = 31261440.

The previous prime is 40008223. The next prime is 40008277. The reversal of 40008275 is 57280004.

40008275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40008275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40008277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17534 + ... + 19683.

It is an arithmetic number, because the mean of its divisors is an integer number (4230446).

Almost surely, 2^40008275 is an apocalyptic number.

40008275 is a deficient number, since it is larger than the sum of its proper divisors (10757077).

40008275 is a wasteful number, since it uses less digits than its factorization.

40008275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37270 (or 37265 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 40008275 is about 6325.2094826970. The cubic root of 40008275 is about 342.0187711275.

Adding to 40008275 its reverse (57280004), we get a palindrome (97288279).

The spelling of 40008275 in words is "forty million, eight thousand, two hundred seventy-five".