40730085 has 48 divisors (see below), whose sum is σ = 77837760. Its totient is φ = 19537920.

The previous prime is 40730083. The next prime is 40730089. The reversal of 40730085 is 58003704.

It is not a de Polignac number, because 40730085 - 2¹ = 40730083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40730083) 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 47 ways as a sum of consecutive naturals, for example, 52581 + ... + 53349.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^40730085 is an apocalyptic number.

40730085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40730085 is a deficient number, since it is larger than the sum of its proper divisors (37107675).

40730085 is a wasteful number, since it uses less digits than its factorization.

40730085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40730085 is about 6382.0126135883. The cubic root of 40730085 is about 344.0633699958.

Adding to 40730085 its reverse (58003704), we get a palindrome (98733789).

The spelling of 40730085 in words is "forty million, seven hundred thirty thousand, eighty-five".