40171955 has 8 divisors (see below), whose sum is σ = 48298704. Its totient is φ = 32076000.

The previous prime is 40171949. The next prime is 40171987. The reversal of 40171955 is 55917104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40171955 - 2⁶ = 40171891 is a prime.

It is a super-2 number, since 2×40171955² = 3227571937044050, which contains 22 as substring.

It is a Duffinian number.

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, 4721 + ... + 10130.

It is an arithmetic number, because the mean of its divisors is an integer number (6037338).

Almost surely, 2^40171955 is an apocalyptic number.

40171955 is a deficient number, since it is larger than the sum of its proper divisors (8126749).

40171955 is a wasteful number, since it uses less digits than its factorization.

40171955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 40171955 is about 6338.1349780515. The cubic root of 40171955 is about 342.4845536217.

The spelling of 40171955 in words is "forty million, one hundred seventy-one thousand, nine hundred fifty-five".