43241042440 has 16 divisors (see below), whose sum is σ = 97292345580. Its totient is φ = 17296416960.

The previous prime is 43241042437. The next prime is 43241042443. The reversal of 43241042440 is 4424014234.

It is an interprime number because it is at equal distance from previous prime (43241042437) and next prime (43241042443).

It can be written as a sum of positive squares in 2 ways, for example, as 40023203364 + 3217839076 = 200058^2 + 56726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43241042399 and 43241042408.

It is not an unprimeable number, because it can be changed into a prime (43241042443) 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, 540512991 + ... + 540513070.

Almost surely, 2^43241042440 is an apocalyptic number.

43241042440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43241042440 is an abundant number, since it is smaller than the sum of its proper divisors (54051303140).

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

43241042440 is a wasteful number, since it uses less digits than its factorization.

43241042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081026072 (or 1081026068 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 43241042440 its reverse (4424014234), we get a palindrome (47665056674).

The spelling of 43241042440 in words is "forty-three billion, two hundred forty-one million, forty-two thousand, four hundred forty".