40500073 has 6 divisors (see below), whose sum is σ = 40968254. Its totient is φ = 40037184.

The previous prime is 40500071. The next prime is 40500101. The reversal of 40500073 is 37000504.

It can be written as a sum of positive squares in 3 ways, for example, as 3143529 + 37356544 = 1773^2 + 6112^2 .

It is not a de Polignac number, because 40500073 - 2¹ = 40500071 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 40500073.

It is not an unprimeable number, because it can be changed into a prime (40500071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5365 + ... + 10477.

Almost surely, 2^40500073 is an apocalyptic number.

It is an amenable number.

40500073 is a deficient number, since it is larger than the sum of its proper divisors (468181).

40500073 is an frugal number, since it uses more digits than its factorization.

40500073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291 (or 5202 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 40500073 is about 6363.9667660980. The cubic root of 40500073 is about 343.4144790971.

Adding to 40500073 its reverse (37000504), we get a palindrome (77500577).

The spelling of 40500073 in words is "forty million, five hundred thousand, seventy-three".