4312440645 has 8 divisors (see below), whose sum is σ = 6899905056. Its totient is φ = 2299968336.

The previous prime is 4312440569. The next prime is 4312440661. The reversal of 4312440645 is 5460442134.

It is a happy number.

4312440645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4312440645 - 2¹⁸ = 4312178501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143748007 + ... + 143748036.

It is an arithmetic number, because the mean of its divisors is an integer number (862488132).

Almost surely, 2^4312440645 is an apocalyptic number.

It is an amenable number.

4312440645 is a deficient number, since it is larger than the sum of its proper divisors (2587464411).

4312440645 is a wasteful number, since it uses less digits than its factorization.

4312440645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287496051.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 4312440645 is about 65669.1757600170. The cubic root of 4312440645 is about 1627.7000502083.

Adding to 4312440645 its reverse (5460442134), we get a palindrome (9772882779).

The spelling of 4312440645 in words is "four billion, three hundred twelve million, four hundred forty thousand, six hundred forty-five".