40971808 has 24 divisors (see below), whose sum is σ = 80898048. Its totient is φ = 20426304.

The previous prime is 40971803. The next prime is 40971817. The reversal of 40971808 is 80817904.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40971803) 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, 10585 + ... + 13927.

It is an arithmetic number, because the mean of its divisors is an integer number (3370752).

Almost surely, 2^40971808 is an apocalyptic number.

It is an amenable number.

40971808 is a deficient number, since it is larger than the sum of its proper divisors (39926240).

40971808 is a wasteful number, since it uses less digits than its factorization.

40971808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736 (or 3728 counting only the distinct ones).

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

The square root of 40971808 is about 6400.9224335247. The cubic root of 40971808 is about 344.7426716559.

The spelling of 40971808 in words is "forty million, nine hundred seventy-one thousand, eight hundred eight".