43240157844 has 24 divisors (see below), whose sum is σ = 108654756000. Its totient is φ = 13304663904.

The previous prime is 43240157843. The next prime is 43240157869. The reversal of 43240157844 is 44875104234.

It is a super-2 number, since 2×43240157844² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43240157796 and 43240157805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240157843) by changing a digit.

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, 138590094 + ... + 138590405.

It is an arithmetic number, because the mean of its divisors is an integer number (4527281500).

Almost surely, 2^43240157844 is an apocalyptic number.

It is an amenable number.

43240157844 is an abundant number, since it is smaller than the sum of its proper divisors (65414598156).

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

43240157844 is a wasteful number, since it uses less digits than its factorization.

43240157844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277180519 (or 277180517 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 43240157844 in words is "forty-three billion, two hundred forty million, one hundred fifty-seven thousand, eight hundred forty-four".