40908778 has 8 divisors (see below), whose sum is σ = 63342720. Its totient is φ = 19794540.

The previous prime is 40908773. The next prime is 40908779. The reversal of 40908778 is 87780904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40908773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329848 + ... + 329971.

It is an arithmetic number, because the mean of its divisors is an integer number (7917840).

Almost surely, 2^40908778 is an apocalyptic number.

40908778 is a deficient number, since it is larger than the sum of its proper divisors (22433942).

40908778 is a wasteful number, since it uses less digits than its factorization.

40908778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659852.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 40908778 is about 6395.9970293927. The cubic root of 40908778 is about 344.5657997717.

The spelling of 40908778 in words is "forty million, nine hundred eight thousand, seven hundred seventy-eight".