40172827 has 8 divisors (see below), whose sum is σ = 41150016. Its totient is φ = 39200832.

The previous prime is 40172813. The next prime is 40172833. The reversal of 40172827 is 72827104.

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

It is a cyclic number.

It is not a de Polignac number, because 40172827 - 2²³ = 31784219 is a prime.

It is a super-2 number, since 2×40172827² = 3227712058343858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40172837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17583 + ... + 19735.

It is an arithmetic number, because the mean of its divisors is an integer number (5143752).

Almost surely, 2^40172827 is an apocalyptic number.

40172827 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

40172827 is a deficient number, since it is larger than the sum of its proper divisors (977189).

40172827 is a wasteful number, since it uses less digits than its factorization.

40172827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 40172827 is about 6338.2037676301. The cubic root of 40172827 is about 342.4870316719.

The spelling of 40172827 in words is "forty million, one hundred seventy-two thousand, eight hundred twenty-seven".