40628073 has 16 divisors (see below), whose sum is σ = 56139776. Its totient is φ = 26107920.

The previous prime is 40627997. The next prime is 40628083. The reversal of 40628073 is 37082604.

It is not a de Polignac number, because 40628073 - 2¹⁰ = 40627049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40628073.

It is not an unprimeable number, because it can be changed into a prime (40628083) 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 15 ways as a sum of consecutive naturals, for example, 27840 + ... + 29262.

It is an arithmetic number, because the mean of its divisors is an integer number (3508736).

Almost surely, 2^40628073 is an apocalyptic number.

It is an amenable number.

40628073 is a deficient number, since it is larger than the sum of its proper divisors (15511703).

40628073 is a wasteful number, since it uses less digits than its factorization.

40628073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40628073 is about 6374.0154533857. The cubic root of 40628073 is about 343.7758844200.

The spelling of 40628073 in words is "forty million, six hundred twenty-eight thousand, seventy-three".