40613085 has 24 divisors (see below), whose sum is σ = 74538360. Its totient is φ = 20385792.

The previous prime is 40613081. The next prime is 40613099. The reversal of 40613085 is 58031604.

40613085 is a `hidden beast` number, since 40 + 613 + 0 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1750329 + 38862756 = 1323^2 + 6234^2 .

It is not a de Polignac number, because 40613085 - 2² = 40613081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40613081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25780 + ... + 27309.

It is an arithmetic number, because the mean of its divisors is an integer number (3105765).

Almost surely, 2^40613085 is an apocalyptic number.

40613085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40613085 is a deficient number, since it is larger than the sum of its proper divisors (33925275).

40613085 is a wasteful number, since it uses less digits than its factorization.

40613085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53117 (or 53114 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40613085 is about 6372.8396339466. The cubic root of 40613085 is about 343.7336053889.

Adding to 40613085 its reverse (58031604), we get a palindrome (98644689).

The spelling of 40613085 in words is "forty million, six hundred thirteen thousand, eighty-five".