40224431 has 8 divisors (see below), whose sum is σ = 45867024. Its totient is φ = 34945920.

The previous prime is 40224427. The next prime is 40224449. The reversal of 40224431 is 13442204.

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 40224431 - 2² = 40224427 is a prime.

It is a super-3 number, since 3×40224431³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224451) 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, 90785 + ... + 91226.

It is an arithmetic number, because the mean of its divisors is an integer number (5733378).

Almost surely, 2^40224431 is an apocalyptic number.

40224431 is a deficient number, since it is larger than the sum of its proper divisors (5642593).

40224431 is a wasteful number, since it uses less digits than its factorization.

40224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182041.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40224431 is about 6342.2733305968. The cubic root of 40224431 is about 342.6336161497.

Adding to 40224431 its reverse (13442204), we get a palindrome (53666635).

The spelling of 40224431 in words is "forty million, two hundred twenty-four thousand, four hundred thirty-one".