40812671 has 4 divisors (see below), whose sum is σ = 41808144. Its totient is φ = 39817200.

The previous prime is 40812661. The next prime is 40812679. The reversal of 40812671 is 17621804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40812671 - 2¹⁰ = 40811647 is a prime.

It is a super-2 number, since 2×40812671² = 3331348228308482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40812679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497675 + ... + 497756.

It is an arithmetic number, because the mean of its divisors is an integer number (10452036).

Almost surely, 2^40812671 is an apocalyptic number.

40812671 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40812671 is a deficient number, since it is larger than the sum of its proper divisors (995473).

40812671 is an equidigital number, since it uses as much as digits as its factorization.

40812671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995472.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 40812671 is about 6388.4795530705. The cubic root of 40812671 is about 344.2957586921.

The spelling of 40812671 in words is "forty million, eight hundred twelve thousand, six hundred seventy-one".