440442659489 has 4 divisors (see below), whose sum is σ = 503363039424. Its totient is φ = 377522279556.

The previous prime is 440442659473. The next prime is 440442659513. The reversal of 440442659489 is 984956244044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440442659489 - 2⁴ = 440442659473 is a prime.

It is a super-2 number, since 2×440442659489² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440442649489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31460189957 + ... + 31460189970.

It is an arithmetic number, because the mean of its divisors is an integer number (125840759856).

Almost surely, 2^440442659489 is an apocalyptic number.

It is an amenable number.

440442659489 is a deficient number, since it is larger than the sum of its proper divisors (62920379935).

440442659489 is an equidigital number, since it uses as much as digits as its factorization.

440442659489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62920379934.

The product of its (nonzero) digits is 39813120, while the sum is 59.

The spelling of 440442659489 in words is "four hundred forty billion, four hundred forty-two million, six hundred fifty-nine thousand, four hundred eighty-nine".