40172875 has 8 divisors (see below), whose sum is σ = 50135904. Its totient is φ = 32138200.

The previous prime is 40172837. The next prime is 40172893. The reversal of 40172875 is 57827104.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-40172875 is a prime.

It is a super-2 number, since 2×40172875² = 3227719771531250, which contains 22 as substring.

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 40172875.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160567 + ... + 160816.

It is an arithmetic number, because the mean of its divisors is an integer number (6266988).

Almost surely, 2^40172875 is an apocalyptic number.

40172875 is a deficient number, since it is larger than the sum of its proper divisors (9963029).

40172875 is an equidigital number, since it uses as much as digits as its factorization.

40172875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321398 (or 321388 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 40172875 is about 6338.2075541907. The cubic root of 40172875 is about 342.4871680773.

Adding to 40172875 its reverse (57827104), we get a palindrome (97999979).

The spelling of 40172875 in words is "forty million, one hundred seventy-two thousand, eight hundred seventy-five".