42443032440 has 64 divisors (see below), whose sum is σ = 127743960960. Its totient is φ = 11281265280.

The previous prime is 42443032417. The next prime is 42443032469. The reversal of 42443032440 is 4423034424.

It is a super-2 number, since 2×42443032440² (a number of 22 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 = 42443032398 and 42443032407.

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 15 ways as a sum of consecutive naturals, for example, 539206 + ... + 612885.

It is an arithmetic number, because the mean of its divisors is an integer number (1995999390).

Almost surely, 2^42443032440 is an apocalyptic number.

42443032440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42443032440 is an abundant number, since it is smaller than the sum of its proper divisors (85300928520).

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

42443032440 is a wasteful number, since it uses less digits than its factorization.

42443032440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152412 (or 1152408 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 42443032440 its reverse (4423034424), we get a palindrome (46866066864).

The spelling of 42443032440 in words is "forty-two billion, four hundred forty-three million, thirty-two thousand, four hundred forty".