40507873 has 4 divisors (see below), whose sum is σ = 46294720. Its totient is φ = 34721028.

The previous prime is 40507861. The next prime is 40507891. The reversal of 40507873 is 37870504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40507873 - 2⁹ = 40507361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40507813) 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, 2893413 + ... + 2893426.

It is an arithmetic number, because the mean of its divisors is an integer number (11573680).

Almost surely, 2^40507873 is an apocalyptic number.

It is an amenable number.

40507873 is a deficient number, since it is larger than the sum of its proper divisors (5786847).

40507873 is an equidigital number, since it uses as much as digits as its factorization.

40507873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786846.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 40507873 is about 6364.5795619192. The cubic root of 40507873 is about 343.4365240038.

The spelling of 40507873 in words is "forty million, five hundred seven thousand, eight hundred seventy-three".