40426873 has 4 divisors (see below), whose sum is σ = 40439680. Its totient is φ = 40414068.

The previous prime is 40426843. The next prime is 40426879. The reversal of 40426873 is 37862404.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40426873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40426879) 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, 2068 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (10109920).

Almost surely, 2^40426873 is an apocalyptic number.

It is an amenable number.

40426873 is a deficient number, since it is larger than the sum of its proper divisors (12807).

40426873 is an equidigital number, since it uses as much as digits as its factorization.

40426873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12806.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 40426873 is about 6358.2130351224. The cubic root of 40426873 is about 343.2074580719.

The spelling of 40426873 in words is "forty million, four hundred twenty-six thousand, eight hundred seventy-three".