40678385 has 24 divisors (see below), whose sum is σ = 54468288. Its totient is φ = 29136800.

The previous prime is 40678369. The next prime is 40678397. The reversal of 40678385 is 58387604.

It is a happy number.

It is not a de Polignac number, because 40678385 - 2⁴ = 40678369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42482 + ... + 43428.

It is an arithmetic number, because the mean of its divisors is an integer number (2269512).

Almost surely, 2^40678385 is an apocalyptic number.

It is an amenable number.

40678385 is a deficient number, since it is larger than the sum of its proper divisors (13789903).

40678385 is a wasteful number, since it uses less digits than its factorization.

40678385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 40678385 is about 6377.9608810340. The cubic root of 40678385 is about 343.9177314761.

The spelling of 40678385 in words is "forty million, six hundred seventy-eight thousand, three hundred eighty-five".