40799872 has 16 divisors (see below), whose sum is σ = 81281250. Its totient is φ = 20399872.

The previous prime is 40799867. The next prime is 40799873. The reversal of 40799872 is 27899704.

It can be written as a sum of positive squares in only one way, i.e., 40246336 + 553536 = 6344^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (46) 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 (40799873) by changing a digit.

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 as a sum of consecutive naturals, namely, 159247 + ... + 159502.

Almost surely, 2^40799872 is an apocalyptic number.

It is an amenable number.

40799872 is a deficient number, since it is larger than the sum of its proper divisors (40481378).

40799872 is an equidigital number, since it uses as much as digits as its factorization.

40799872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318763 (or 318751 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 40799872 is about 6387.4777494720. The cubic root of 40799872 is about 344.2597641343.

The spelling of 40799872 in words is "forty million, seven hundred ninety-nine thousand, eight hundred seventy-two".