40344231 has 8 divisors (see below), whose sum is σ = 56131200. Its totient is φ = 25726712.

The previous prime is 40344229. The next prime is 40344257. The reversal of 40344231 is 13244304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40344231 - 2¹ = 40344229 is a prime.

It is a super-2 number, since 2×40344231² = 3255313949962722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40344198 and 40344207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292281 + ... + 292418.

It is an arithmetic number, because the mean of its divisors is an integer number (7016400).

Almost surely, 2^40344231 is an apocalyptic number.

40344231 is a deficient number, since it is larger than the sum of its proper divisors (15786969).

40344231 is a wasteful number, since it uses less digits than its factorization.

40344231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584725.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40344231 is about 6351.7108718833. The cubic root of 40344231 is about 342.9734330473.

Adding to 40344231 its reverse (13244304), we get a palindrome (53588535).

The spelling of 40344231 in words is "forty million, three hundred forty-four thousand, two hundred thirty-one".