40224231 has 6 divisors (see below), whose sum is σ = 58101680. Its totient is φ = 26816148.

The previous prime is 40224229. The next prime is 40224257. The reversal of 40224231 is 13242204.

It is not a de Polignac number, because 40224231 - 2¹ = 40224229 is a prime.

It is a super-2 number, since 2×40224231² = 3235977519082722, 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 (40224211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2234671 + ... + 2234688.

Almost surely, 2^40224231 is an apocalyptic number.

40224231 is a deficient number, since it is larger than the sum of its proper divisors (17877449).

40224231 is a wasteful number, since it uses less digits than its factorization.

40224231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469365 (or 4469362 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40224231 is about 6342.2575633602. The cubic root of 40224231 is about 342.6330482789.

Adding to 40224231 its reverse (13242204), we get a palindrome (53466435).

The spelling of 40224231 in words is "forty million, two hundred twenty-four thousand, two hundred thirty-one".