440123324664432 has 40 divisors (see below), whose sum is σ = 1137150060595200. Its totient is φ = 146686509699520.

The previous prime is 440123324664409. The next prime is 440123324664497. The reversal of 440123324664432 is 234466423321044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664202544 + ... + 664864847.

It is an arithmetic number, because the mean of its divisors is an integer number (28428751514880).

Almost surely, 2^{440123324664432} is an apocalyptic number.

It is an amenable number.

440123324664432 is an abundant number, since it is smaller than the sum of its proper divisors (697026735930768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440123324664432 is a wasteful number, since it uses less digits than its factorization.

440123324664432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329074301 (or 1329074295 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 48.

Adding to 440123324664432 its reverse (234466423321044), we get a palindrome (674589747985476).

The spelling of 440123324664432 in words is "four hundred forty trillion, one hundred twenty-three billion, three hundred twenty-four million, six hundred sixty-four thousand, four hundred thirty-two".