40402175 has 12 divisors (see below), whose sum is σ = 54653496. Its totient is φ = 29383200.

The previous prime is 40402169. The next prime is 40402177. The reversal of 40402175 is 57120404.

It is not a de Polignac number, because 40402175 - 2²⁰ = 39353599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40402175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402177) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 73184 + ... + 73733.

It is an arithmetic number, because the mean of its divisors is an integer number (4554458).

Almost surely, 2^40402175 is an apocalyptic number.

40402175 is a deficient number, since it is larger than the sum of its proper divisors (14251321).

40402175 is a wasteful number, since it uses less digits than its factorization.

40402175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146938 (or 146933 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40402175 is about 6356.2705260239. The cubic root of 40402175 is about 343.1375518936.

Adding to 40402175 its reverse (57120404), we get a palindrome (97522579).

The spelling of 40402175 in words is "forty million, four hundred two thousand, one hundred seventy-five".