40448873 has 4 divisors (see below), whose sum is σ = 40548180. Its totient is φ = 40349568.

The previous prime is 40448857. The next prime is 40448887. The reversal of 40448873 is 37884404.

40448873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29246464 + 11202409 = 5408^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 40448873 - 2⁴ = 40448857 is a prime.

It is a super-2 number, since 2×40448873² = 3272222653940258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40448833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49040 + ... + 49857.

It is an arithmetic number, because the mean of its divisors is an integer number (10137045).

Almost surely, 2^40448873 is an apocalyptic number.

It is an amenable number.

40448873 is a deficient number, since it is larger than the sum of its proper divisors (99307).

40448873 is an equidigital number, since it uses as much as digits as its factorization.

40448873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99306.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 40448873 is about 6359.9428456551. The cubic root of 40448873 is about 343.2697037538.

The spelling of 40448873 in words is "forty million, four hundred forty-eight thousand, eight hundred seventy-three".