40224437643 has 8 divisors (see below), whose sum is σ = 57758166928. Its totient is φ = 24753500064.

The previous prime is 40224437641. The next prime is 40224437651. The reversal of 40224437643 is 34673442204.

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

It is not a de Polignac number, because 40224437643 - 2¹ = 40224437641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1031395837 = 40224437643 / (4 + 0 + 2 + 2 + 4 + 4 + 3 + 7 + 6 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40224437641) 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 7 ways as a sum of consecutive naturals, for example, 515697880 + ... + 515697957.

It is an arithmetic number, because the mean of its divisors is an integer number (7219770866).

Almost surely, 2^40224437643 is an apocalyptic number.

40224437643 is a deficient number, since it is larger than the sum of its proper divisors (17533729285).

40224437643 is a wasteful number, since it uses less digits than its factorization.

40224437643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031395853.

The product of its (nonzero) digits is 387072, while the sum is 39.

Adding to 40224437643 its reverse (34673442204), we get a palindrome (74897879847).

The spelling of 40224437643 in words is "forty billion, two hundred twenty-four million, four hundred thirty-seven thousand, six hundred forty-three".