40873505 has 4 divisors (see below), whose sum is σ = 49048212. Its totient is φ = 32698800.

The previous prime is 40873501. The next prime is 40873513. The reversal of 40873505 is 50537804.

It is a happy number.

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 9412624 + 31460881 = 3068^2 + 5609^2 .

It is not a de Polignac number, because 40873505 - 2² = 40873501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40873501) 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, 4087346 + ... + 4087355.

It is an arithmetic number, because the mean of its divisors is an integer number (12262053).

Almost surely, 2^40873505 is an apocalyptic number.

It is an amenable number.

40873505 is a deficient number, since it is larger than the sum of its proper divisors (8174707).

40873505 is an equidigital number, since it uses as much as digits as its factorization.

40873505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174706.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 40873505 is about 6393.2390069510. The cubic root of 40873505 is about 344.4667390086.

The spelling of 40873505 in words is "forty million, eight hundred seventy-three thousand, five hundred five".