43241402440 has 32 divisors (see below), whose sum is σ = 97300153080. Its totient is φ = 17295316992.

The previous prime is 43241402437. The next prime is 43241402459. The reversal of 43241402440 is 4420414234.

It can be written as a sum of positive squares in 4 ways, for example, as 42247513764 + 993888676 = 205542^2 + 31526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43241402399 and 43241402408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695512 + ... + 755128.

Almost surely, 2^43241402440 is an apocalyptic number.

43241402440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43241402440 is an abundant number, since it is smaller than the sum of its proper divisors (54058750640).

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

43241402440 is a wasteful number, since it uses less digits than its factorization.

43241402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77761 (or 77757 counting only the distinct ones).

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

Adding to 43241402440 its reverse (4420414234), we get a palindrome (47661816674).

The spelling of 43241402440 in words is "forty-three billion, two hundred forty-one million, four hundred two thousand, four hundred forty".