240664000440 has 32 divisors (see below), whose sum is σ = 721992001680. Its totient is φ = 64177066752.

The previous prime is 240664000399. The next prime is 240664000459. The reversal of 240664000440 is 44000466042.

It is a super-2 number, since 2×240664000440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 240664000398 and 240664000407.

It is a congruent number.

It is an unprimeable number.

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, 1002766549 + ... + 1002766788.

Almost surely, 2^240664000440 is an apocalyptic number.

240664000440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240664000440 is an abundant number, since it is smaller than the sum of its proper divisors (481328001240).

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

240664000440 is a wasteful number, since it uses less digits than its factorization.

240664000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005533351 (or 2005533347 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 240664000440 its reverse (44000466042), we get a palindrome (284664466482).

The spelling of 240664000440 in words is "two hundred forty billion, six hundred sixty-four million, four hundred forty", and thus it is an aban number.