40688085 has 8 divisors (see below), whose sum is σ = 65100960. Its totient is φ = 21700304.

The previous prime is 40688071. The next prime is 40688099. The reversal of 40688085 is 58088604.

It is an interprime number because it is at equal distance from previous prime (40688071) and next prime (40688099).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40688085 - 2¹⁵ = 40655317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356255 + ... + 1356284.

It is an arithmetic number, because the mean of its divisors is an integer number (8137620).

Almost surely, 2^40688085 is an apocalyptic number.

It is an amenable number.

40688085 is a deficient number, since it is larger than the sum of its proper divisors (24412875).

40688085 is a wasteful number, since it uses less digits than its factorization.

40688085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712547.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 40688085 is about 6378.7212668371. The cubic root of 40688085 is about 343.9450657051.

The spelling of 40688085 in words is "forty million, six hundred eighty-eight thousand, eighty-five".