440023619952 has 120 divisors (see below), whose sum is σ = 1408387635200. Its totient is φ = 125630766720.

The previous prime is 440023619947. The next prime is 440023619977. The reversal of 440023619952 is 259916320044.

440023619952 is a `hidden beast` number, since 4 + 4 + 0 + 0 + 23 + 619 + 9 + 5 + 2 = 666.

It is a super-2 number, since 2×440023619952² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440023619898 and 440023619907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1254177 + ... + 1566207.

Almost surely, 2^440023619952 is an apocalyptic number.

440023619952 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440023619952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704193817600).

440023619952 is an abundant number, since it is smaller than the sum of its proper divisors (968364015248).

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

440023619952 is a wasteful number, since it uses less digits than its factorization.

440023619952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313451 (or 313442 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

Adding to 440023619952 its reverse (259916320044), we get a palindrome (699939939996).

The spelling of 440023619952 in words is "four hundred forty billion, twenty-three million, six hundred nineteen thousand, nine hundred fifty-two".