40878805 has 8 divisors (see below), whose sum is σ = 53514144. Its totient is φ = 29730000.

The previous prime is 40878793. The next prime is 40878833. The reversal of 40878805 is 50887804.

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

It is a de Polignac number, because none of the positive numbers 2^k-40878805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371571 + ... + 371680.

It is an arithmetic number, because the mean of its divisors is an integer number (6689268).

Almost surely, 2^40878805 is an apocalyptic number.

It is an amenable number.

40878805 is a deficient number, since it is larger than the sum of its proper divisors (12635339).

40878805 is a wasteful number, since it uses less digits than its factorization.

40878805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743267.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 40878805 is about 6393.6534938953. The cubic root of 40878805 is about 344.4816271765.

The spelling of 40878805 in words is "forty million, eight hundred seventy-eight thousand, eight hundred five".