40180673 has 8 divisors (see below), whose sum is σ = 45817128. Its totient is φ = 34907904.

The previous prime is 40180669. The next prime is 40180691. The reversal of 40180673 is 37608104.

It can be written as a sum of positive squares in 4 ways, for example, as 5276209 + 34904464 = 2297^2 + 5908^2 .

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 40180673 - 2² = 40180669 is a prime.

It is a super-2 number, since 2×40180673² = 3228972965465858, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (40180633) 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, 90686 + ... + 91127.

It is an arithmetic number, because the mean of its divisors is an integer number (5727141).

Almost surely, 2^40180673 is an apocalyptic number.

It is an amenable number.

40180673 is a deficient number, since it is larger than the sum of its proper divisors (5636455).

40180673 is a wasteful number, since it uses less digits than its factorization.

40180673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181843.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40180673 is about 6338.8226824861. The cubic root of 40180673 is about 342.5093268279.

Adding to 40180673 its reverse (37608104), we get a palindrome (77788777).

The spelling of 40180673 in words is "forty million, one hundred eighty thousand, six hundred seventy-three".