40156673 has 2 divisors, whose sum is σ = 40156674. Its totient is φ = 40156672.

The previous prime is 40156667. The next prime is 40156679. The reversal of 40156673 is 37665104.

It is a balanced prime because it is at equal distance from previous prime (40156667) and next prime (40156679).

It can be written as a sum of positive squares in only one way, i.e., 23697424 + 16459249 = 4868^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 40156673 - 2¹² = 40152577 is a prime.

It is a super-2 number, since 2×40156673² = 3225116772857858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40156679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078336 + 20078337.

It is an arithmetic number, because the mean of its divisors is an integer number (20078337).

Almost surely, 2^40156673 is an apocalyptic number.

It is an amenable number.

40156673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40156673 is an equidigital number, since it uses as much as digits as its factorization.

40156673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 40156673 is about 6336.9293036928. The cubic root of 40156673 is about 342.4411194003.

The spelling of 40156673 in words is "forty million, one hundred fifty-six thousand, six hundred seventy-three".