40078616 has 16 divisors (see below), whose sum is σ = 75654000. Its totient is φ = 19904224.

The previous prime is 40078613. The next prime is 40078631. The reversal of 40078616 is 61687004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15620 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (4728375).

Almost surely, 2^40078616 is an apocalyptic number.

It is an amenable number.

40078616 is a deficient number, since it is larger than the sum of its proper divisors (35575384).

40078616 is a wasteful number, since it uses less digits than its factorization.

40078616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33778 (or 33774 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 40078616 is about 6330.7674100381. The cubic root of 40078616 is about 342.2190951595.

The spelling of 40078616 in words is "forty million, seventy-eight thousand, six hundred sixteen".