40810978 has 16 divisors (see below), whose sum is σ = 66036096. Its totient is φ = 18804240.

The previous prime is 40810961. The next prime is 40811003. The reversal of 40810978 is 87901804.

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, 22825 + ... + 24547.

It is an arithmetic number, because the mean of its divisors is an integer number (4127256).

Almost surely, 2^40810978 is an apocalyptic number.

40810978 is a deficient number, since it is larger than the sum of its proper divisors (25225118).

40810978 is a wasteful number, since it uses less digits than its factorization.

40810978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 40810978 is about 6388.3470475546. The cubic root of 40810978 is about 344.2909979094.

The spelling of 40810978 in words is "forty million, eight hundred ten thousand, nine hundred seventy-eight".