40712173 has 8 divisors (see below), whose sum is σ = 42388088. Its totient is φ = 39066624.

The previous prime is 40712171. The next prime is 40712179. The reversal of 40712173 is 37121704.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14722569 + 25989604 = 3837^2 + 5098^2 .

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 40712173 - 2¹ = 40712171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40712171) 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 7 ways as a sum of consecutive naturals, for example, 4836 + ... + 10237.

It is an arithmetic number, because the mean of its divisors is an integer number (5298511).

Almost surely, 2^40712173 is an apocalyptic number.

It is an amenable number.

40712173 is a deficient number, since it is larger than the sum of its proper divisors (1675915).

40712173 is a wasteful number, since it uses less digits than its factorization.

40712173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15183.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 40712173 is about 6380.6091401997. The cubic root of 40712173 is about 344.0129259836.

Adding to 40712173 its reverse (37121704), we get a palindrome (77833877).

The spelling of 40712173 in words is "forty million, seven hundred twelve thousand, one hundred seventy-three".