40477685 has 8 divisors (see below), whose sum is σ = 48625080. Its totient is φ = 32347584.

The previous prime is 40477673. The next prime is 40477687. The reversal of 40477685 is 58677404.

It can be written as a sum of positive squares in 4 ways, for example, as 15816529 + 24661156 = 3977^2 + 4966^2 .

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 40477685 - 2¹⁶ = 40412149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40477687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (6078135).

Almost surely, 2^40477685 is an apocalyptic number.

It is an amenable number.

40477685 is a deficient number, since it is larger than the sum of its proper divisors (8147395).

40477685 is a wasteful number, since it uses less digits than its factorization.

40477685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 40477685 is about 6362.2075571298. The cubic root of 40477685 is about 343.3511888369.

The spelling of 40477685 in words is "forty million, four hundred seventy-seven thousand, six hundred eighty-five".