40685527 has 8 divisors (see below), whose sum is σ = 41246352. Its totient is φ = 40128000.

The previous prime is 40685509. The next prime is 40685531. The reversal of 40685527 is 72558604.

It is a happy number.

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 40685527 - 2¹⁹ = 40161239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40625527) 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 7 ways as a sum of consecutive naturals, for example, 32823 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (5155794).

Almost surely, 2^40685527 is an apocalyptic number.

40685527 is a deficient number, since it is larger than the sum of its proper divisors (560825).

40685527 is a wasteful number, since it uses less digits than its factorization.

40685527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 40685527 is about 6378.5207532781. The cubic root of 40685527 is about 343.9378577807.

The spelling of 40685527 in words is "forty million, six hundred eighty-five thousand, five hundred twenty-seven".