40679231 has 4 divisors (see below), whose sum is σ = 40727232. Its totient is φ = 40631232.

The previous prime is 40679227. The next prime is 40679263. The reversal of 40679231 is 13297604.

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

It is a cyclic number.

It is not a de Polignac number, because 40679231 - 2² = 40679227 is a prime.

It is a super-2 number, since 2×40679231² = 3309599669502722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40679201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22706 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (10181808).

Almost surely, 2^40679231 is an apocalyptic number.

40679231 is a deficient number, since it is larger than the sum of its proper divisors (48001).

40679231 is an equidigital number, since it uses as much as digits as its factorization.

40679231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48000.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 40679231 is about 6378.0272028269. The cubic root of 40679231 is about 343.9201156447.

The spelling of 40679231 in words is "forty million, six hundred seventy-nine thousand, two hundred thirty-one".