40081576 has 16 divisors (see below), whose sum is σ = 75227040. Its totient is φ = 20021040.

The previous prime is 40081513. The next prime is 40081607. The reversal of 40081576 is 67518004.

It is an unprimeable number.

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, 9661 + ... + 13171.

It is an arithmetic number, because the mean of its divisors is an integer number (4701690).

Almost surely, 2^40081576 is an apocalyptic number.

It is an amenable number.

40081576 is a deficient number, since it is larger than the sum of its proper divisors (35145464).

40081576 is a wasteful number, since it uses less digits than its factorization.

40081576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 4940 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 40081576 is about 6331.0011846469. The cubic root of 40081576 is about 342.2275197983.

The spelling of 40081576 in words is "forty million, eighty-one thousand, five hundred seventy-six".