40318678 has 16 divisors (see below), whose sum is σ = 64815840. Its totient is φ = 18760896.

The previous prime is 40318673. The next prime is 40318697. The reversal of 40318678 is 87681304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40318673) 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, 10143 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (4050990).

Almost surely, 2^40318678 is an apocalyptic number.

40318678 is a deficient number, since it is larger than the sum of its proper divisors (24497162).

40318678 is a wasteful number, since it uses less digits than its factorization.

40318678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23751.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 40318678 is about 6349.6990479864. The cubic root of 40318678 is about 342.9010075657.

The spelling of 40318678 in words is "forty million, three hundred eighteen thousand, six hundred seventy-eight".